An adiabatic expansion refers to the fact that
a. no heat is transferred between a system and its surroundings.
b. the pressure remains constant.
c. the temperature remains constant.
d. the volume remains constant.
[Ques. 2] The internal resistances of an ideal voltmeter and an ideal ammeter are respectively (ideal meaning the behavior of the system is not changed when using the meter):
a. zero and zero.
b. infinite and infinite.
c. zero and infinite.
d. infinite and zero.
[Ques. 3] The adiabatic index of a gas is given by which of the following?
a. CP /CV
b. CV /CP
c. CP CV
d. CP + CV
[Ques. 4] Which voltage is not caused by a source of emf?
a. the voltage across a charged capacitor
b. the voltage across two copper-iron junctions at different temperatures
c. the voltage across the terminals of a dry cell battery
d. the voltage from an electric generator
[Ques. 5] A closed 2.0-L container holds 3.0 mol of an ideal gas. If 190 J of heat is added, what is the change in internal energy of the system?
a. zero
b. 140 J
c. 165 J
d. 190 J
e. 240 J
[Ques. 6] The basic function of an electromotive force in a circuit is to do which of the following?
a. Convert electrical energy into some other form of energy.
b. Convert some other form of energy into electrical energy.
c. Both choices (a) and (b) are valid.
d. None of the above choices are valid.
[Ques. 7] A 2.0-mol ideal gas system is maintained at a constant volume of 4.0 L. If 100 J of heat is added, what is the work done on the system?
a. zero
b. 5 J
c. 3.3 J
d. 20 J
e. 3.3 J
[Ques. 8] The two ends of a 6.60- resistor are connected to a 14.2-V battery. What is the total power delivered by the battery to the circuit?
a. 0.326 W
b. 30.6 W
c. 2.15 W
d. 619 W
[Ques. 9] In an isovolumetric process by an ideal gas, the system's heat gain is equivalent to a change in
a. temperature.
b. volume.
c. pressure.
d. internal energy.
[Ques. 10] The two ends of a 2.00- resistor are connected to a 8.20-V battery. What is the current through the resistor?
a. 16.4 A
b. 0.244 A
c. 4.10 A
d. 10.2 A
e. 6.20 A
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