Laser_3

A metal such as aluminum in the face-centered cubic lattice has ________ atom(s) per unit cell.

A metal such as aluminum in the face-centered cubic lattice has ________ atom(s) per unit cell.

A metal such as aluminum in the face-centered cubic lattice has ________ atom(s) per unit cell.

▸ 1

▸ 2

▸ 3

▸ 4

▸ 10

manonvsb   10   1 Reply

moon21c

A liquid boils when its

A liquid boils when its

[html]A liquid boils when its

▸ vapor pressure is exactly 1 atmosphere.

▸ vapor pressure is equal to or greater than the external pressure.

▸ temperature is equal to 273 K (standard temperature).

▸ temperature is greater than room temperature.

▸

aryaelfkind   10   1 Reply

dmp7474

When a closed-ended manometer is used for pressure measurements, and the closed end is under vacuum, ...

When a closed-ended manometer is used for pressure measurements, and the closed end is under vacuum, ...

When a closed-ended manometer is used for pressure measurements, and the closed end is under vacuum, the level of manometer liquid in the closed arm can never be lower than that in the other arm.

▸ true

▸ false

capriciossa   15   1 Reply

gagan17

The rate of diffusion of a gas is inversely proportional to its molar mass.

The rate of diffusion of a gas is inversely proportional to its molar mass.

The rate of diffusion of a gas is inversely proportional to its molar mass.

▸ true

▸ false

nitnit   9   1 Reply

12Jfiscus

Gases form heterogeneous mixtures or solutions with one another.

Gases form heterogeneous mixtures or solutions with one another.

Gases form heterogeneous mixtures or solutions with one another.

▸ true

▸ false

mariasmakatof   10   1 Reply

diana72g

Gases are compressible and have a density that is much higher than liquids and solids.

Gases are compressible and have a density that is much higher than liquids and solids.

Gases are compressible and have a density that is much higher than liquids and solids.

▸ true

▸ false

gyoku2302   8   1 Reply

JulzMarie

For real gases, PV >nRT.

For real gases, PV >nRT.

For real gases, PV >nRT.

▸ true

▸ false

agoldberg2011   10   1 Reply

bijin05

For a gas obeying Boyle's law, a plot of V versus 1/ P will give a straight line passing through ...

For a gas obeying Boyle's law, a plot of V versus 1/ P will give a straight line passing through ...

For a gas obeying Boyle's law, a plot of V versus 1/ P will give a straight line passing through the origin.

▸ true

▸ false

ttools   12   1 Reply

Gimor1220

At a temperature of absolute zero, the volume of an ideal gas is zero.

At a temperature of absolute zero, the volume of an ideal gas is zero.

At a temperature of absolute zero, the volume of an ideal gas is zero.

▸ true

▸ false

deodeo   9   1 Reply

billykra

According to the postulates of kinetic molecular theory, the molecules of all gases at a given ...

According to the postulates of kinetic molecular theory, the molecules of all gases at a given ...

According to the postulates of kinetic molecular theory, the molecules of all gases at a given temperature have the same average speed.

▸ true

▸ false

endah87   7   1 Reply

Botox14

Which statement is false?

Which statement is false?

[html]Which statement is false?

▸ The average kinetic energies of molecules from samples of different "ideal" gases are the same at the same temperature.

▸ The molecules of an ideal gas are relatively far apart.

▸ All molec

brettlaw   9   1 Reply

awbradshaw

Which sample of gas is least likely to behave ideally?

Which sample of gas is least likely to behave ideally?

[html]Which sample of gas is least likely to behave ideally?

▸ 1 mol He(g) at 400 K, 1 atm pressure

▸ 1 mol Ne(g) at 400 K, 1 atm pressure

▸ 1 mol H2(g) at 400 K, 1 atm pressure

▸ 1 mol O

linyuki   8   1 Reply

naderaide

Which represents the definition of pressure?

Which represents the definition of pressure?

Which represents the definition of pressure?

▸ volume/density

▸ temperature × area

▸ moles/volume

▸ force/area

▸ volume × force

Septeos   10   1 Reply

chandlerdeane

Which of the following is/are characteristic(s) of gases?

Which of the following is/are characteristic(s) of gases?

[html]Which of the following is/are characteristic(s) of gases?

▸ high compressibility

▸ relatively large distances between molecules

▸ formation of homogeneous mixtures regardless of the nature of gases

▸ choice 1 and 2 only

▸ choice

jugganuts   10   1 Reply

Chicagokid

Which of the following is not a gas at room temperature and pressure?

Which of the following is not a gas at room temperature and pressure?

Which of the following is not a gas at room temperature and pressure?

▸ NH3

▸ CO2

▸ I2

▸ CH4

▸ H2

mariasmakatof   9   1 Reply

yoliness

Which of the following gases effuses most rapidly?

Which of the following gases effuses most rapidly?

Which of the following gases effuses most rapidly?

▸ nitrogen

▸ oxygen

▸ hydrogen chloride

▸ ammonia

▸ carbon monoxide

testipw   8   1 Reply

Hope89

Which of the following gas molecules have the highest average kinetic energy at 25C?

Which of the following gas molecules have the highest average kinetic energy at 25C?

Which of the following gas molecules have the highest average kinetic energy at 25°C?

▸ H2

▸ O2

▸ N2

▸ Cl2

▸ All of the gases have the same average kinetic energy.

edehghany   10   1 Reply

mooltipas

Which is not a property of a gas?

Which is not a property of a gas?

[html]Which is not a property of a gas?

▸ The density of a gaseous substance varies strongly with temperature.

▸ A sample of gas assumes the shape and volume of its container.

▸ Gases are highly compressible.

▸ The densities of gase

hardy7luver   12   1 Reply

isababycookie

Which gas has molecules with the greatest average molecular speed at 25C?

Which gas has molecules with the greatest average molecular speed at 25C?

Which gas has molecules with the greatest average molecular speed at 25°C?

▸ CH4

▸ Kr

▸ N2

▸ CO2

▸ Ar

spiderman13   9   1 Reply

carolyne254

Which figure best represents the concept of pressure? (A sphere represents a gaseous atom.)

Which figure best represents the concept of pressure? (A sphere represents a gaseous atom.)

[html]Which figure best represents the concept of pressure? (A sphere represents a gaseous atom.)

▸

laywatdut   8   1 Reply

dorkiexcici

When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. ...

When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. ...

[html]When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. Calculate the volume of H2(g) at 30.1°C and 0.85 atm that can be formed when 275 mL of 0.725 M HCl solution reacts with excess Mg

kincasdce123   10   1 Reply

studytime

What volume of CO2 gas at 645 torr and 800. K could be produced by the decomposition of 45.0 g of ...

What volume of CO2 gas at 645 torr and 800. K could be produced by the decomposition of 45.0 g of ...

[html]What volume of CO2 gas at 645 torr and 800. K could be produced by the decomposition of 45.0 g of CaCO3?CaCO3(s) → CaO(s) + CO2(g)(R = 0.08206 L • atm/K •

remmylp   7   1 Reply

Hello32hello3

What volume of chlorine gas at 25C and 0.950 atm can be produced by the reaction of 12.0 g of MnO2 ...

What volume of chlorine gas at 25C and 0.950 atm can be produced by the reaction of 12.0 g of MnO2 ...

[html]What volume of chlorine gas at 25°C and 0.950 atm can be produced by the reaction of 12.0 g of MnO2 in excess HCl(aq)?MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l

denausor   8   1 Reply

moyo966

What mass of KClO3 must be decomposed to produce 126 L of oxygen gas at 133C and 0.880 atm? (The ...

What mass of KClO3 must be decomposed to produce 126 L of oxygen gas at 133C and 0.880 atm? (The ...

[html]What mass of KClO3 must be decomposed to produce 126 L of oxygen gas at 133°C and 0.880 atm? (The other reaction product is solid KCl.)(R = 0.08206 L • atm/K • mol)

▸ 24.6 g

▸ 70.8 g

▸ 272 g

▸ 408 g

▸ 612 g[

nurse15   4   1 Reply

Boba155

What is the volume of NH3 produced in the following reaction when 3.0 L of N2 reacts with 4.0 L of ...

What is the volume of NH3 produced in the following reaction when 3.0 L of N2 reacts with 4.0 L of ...

[html]What is the volume of NH3 produced in the following reaction when 3.0 L of N2 reacts with 4.0 L of H2?N2(g) + 3H2(g) → 2NH3(g)

▸ 1.5 L

▸ 2.7

pgakui   11   1 Reply

melswhi1

What is the volume occupied by 35.2 g of methane gas (CH4) at 25C and 1.0 atm?(R = 0.08206 L atm/K mol)

What is the volume occupied by 35.2 g of methane gas (CH4) at 25C and 1.0 atm?(R = 0.08206 L atm/K mol)

What is the volume occupied by 35.2 g of methane gas (CH4) at 25°C and 1.0 atm?(R = 0.08206 L • atm/K • mol)

▸ 0.0186 L

▸ 4.5 L

▸ 11.2 L

▸ 49.2 L

▸ 53.7 L

qwertybio   10   1 Reply

skdiveelis

What is the volume occupied by 25.2 g of CO2 at 0.840 atm and 25C?(R = 0.08206 L atm/K mol)

What is the volume occupied by 25.2 g of CO2 at 0.840 atm and 25C?(R = 0.08206 L atm/K mol)

What is the volume occupied by 25.2 g of CO2 at 0.840 atm and 25°C?(R = 0.08206 L • atm/K • mol)

▸ 0.060 L

▸ 1.34 L

▸ 16.7 L

▸ 24.2 L

▸ 734 L

zitze   9   1 Reply

sagitario81

What is the temperature in Celsius at 77 K, which is the normal boiling point of liquid nitrogen?

What is the temperature in Celsius at 77 K, which is the normal boiling point of liquid nitrogen?

What is the temperature in Celsius at 77 K, which is the normal boiling point of liquid nitrogen?

▸ –350°C

▸ –196°C

▸ 350°C

▸ 196°C

▸ 3.55°C

zbuild007   13   1 Reply

astroasis

What is the temperature in Celsius at 4 K, which is the normal boiling point of liquid helium?

What is the temperature in Celsius at 4 K, which is the normal boiling point of liquid helium?

What is the temperature in Celsius at 4 K, which is the normal boiling point of liquid helium?

▸ –269°C

▸ 269°C

▸ 277°C

▸ 68.3°C

▸ –277°C

sharonfaith30   9   1 Reply

itnow96

What is the pressure in atmospheres exerted by a column of water that is 12.5 m high?(density of ...

What is the pressure in atmospheres exerted by a column of water that is 12.5 m high?(density of ...

[html]What is the pressure in atmospheres exerted by a column of water that is 12.5 m high?(density of water = 1.00g/cm3; gravitational constant = 9.80665 m/s2, 1 atm = 101,325 Pa = 760 torr = 760 mmHg)

▸ 123 atm

islandgurl   9   1 Reply

ttoe81

What is the pressure in atmospheres exerted by a column of mercury that is 100. m high?(density of ...

What is the pressure in atmospheres exerted by a column of mercury that is 100. m high?(density of ...

[html]What is the pressure in atmospheres exerted by a column of mercury that is 100. m high?(density of mercury = 13.5951 g/cm3, gravitational constant = 9.80665 m/s2, 1 atm = 101,325 Pa = 760 torr = 760 mmHg)

▸

daogrady   11   1 Reply

PWT82

What is the molar mass of an unknown gas if a sample weighing 0.389 g is collected in a flask with a ...

What is the molar mass of an unknown gas if a sample weighing 0.389 g is collected in a flask with a ...

[html]What is the molar mass of an unknown gas if a sample weighing 0.389 g is collected in a flask with a volume of 102 cm3 at 97°C and at a pressure of 728 mmHg?(R = 0.08206 L • atm/K • mol, 1 atm = 760 mmHg).

▸ 187

Bpringle2000   8   1 Reply

sportzchik15

What is the mass, in grams, of 2.74 L of CO gas measured at 33C and 945 mmHg?(R = 0.08206 L atm/mol ...

What is the mass, in grams, of 2.74 L of CO gas measured at 33C and 945 mmHg?(R = 0.08206 L atm/mol ...

What is the mass, in grams, of 2.74 L of CO gas measured at 33°C and 945 mmHg?(R = 0.08206 L • atm/mol • K, 1 atm = 760 mmHg)

▸ 0.263 g

▸ 2.46 g

▸ 3.80 g

▸ 35.2 g

▸ 206 g

anthonyaooo   9   1 Reply

angelofavarice

What is the Kelvin temperature at 24C?

What is the Kelvin temperature at 24C?

What is the Kelvin temperature at 24°C?

▸ 249 K

▸ 11.4 K

▸ –297 K

▸ –249 K

▸ 297 K

remmylp   5   1 Reply

xueli

What is the initial pressure of a gas having an initial temperature of 905 K, an initial volume of ...

What is the initial pressure of a gas having an initial temperature of 905 K, an initial volume of ...

[html]What is the initial pressure of a gas having an initial temperature of 905 K, an initial volume of 14.3 L, a final pressure of 0.83 atm, a final temperature of 154 K and a final volume of 2.7 L?

▸ 26 atm

▸ 0.27 atm

▸ 0.75 atm

▸ 1.3 a

Noar   9   1 Reply

JRAD814

What is the formula that describes the relationship between the volume and number of moles in the ...

What is the formula that describes the relationship between the volume and number of moles in the ...

[html]What is the formula that describes the relationship between the volume and number of moles in the sample at constant pressure and constant temperature?

▸ Vn = k3

▸ V2 /n = k

adnan_buljic   9   1 Reply

DNA_Helicase

What is the formula that describes the relationship between the volume and temperature at constant ...

What is the formula that describes the relationship between the volume and temperature at constant ...

[html]What is the formula that describes the relationship between the volume and temperature at constant pressure and constant number of moles?

▸ VT = k2

▸ V2/T = k2

jared8mp   6   1 Reply

yoorimchi

What is the formula that describes the relationship between the pressure, volume, temperature, and moles?

What is the formula that describes the relationship between the pressure, volume, temperature, and moles?

[html]What is the formula that describes the relationship between the pressure, volume, temperature, and moles?

▸

fatsoulmh   9   1 Reply

catdaster

What is the formula that describes the relationship between the pressure and volume at constant ...

What is the formula that describes the relationship between the pressure and volume at constant ...

[html]What is the formula that describes the relationship between the pressure and volume at constant temperature and constant number of moles?

▸ PV = k1

▸ V/P = k1

▸ P

schweet   4   1 Reply

Hlh13

What is the final temperature of a gas that expands from a volume of 22.4 L at 278 K to a volume of ...

What is the final temperature of a gas that expands from a volume of 22.4 L at 278 K to a volume of ...

What is the final temperature of a gas that expands from a volume of 22.4 L at 278 K to a volume of 38.3 L?

▸ 163 K

▸ 294 K

▸ 3.09 K

▸ 217 K

▸ 475 K

Anthonyling   5   1 Reply

dmp7474