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Home Q & A Board Biology-Related Homework Help Cell Biology
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iamnew iamnew
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12 years ago
Specific Heat question?

Substance Specific heats
 
water - 4.18
 ethyl alcohol - 2.44
 benzene - 1.80
 sulfuric acid - 1.40
 
Based on the following information which is true? Choose all that apply?
 
A) More heat is required to raise the temperature of 1 g of water 1 than to raise the temperature of 1 g of ethyl alcohol 1 .
 B) Sulfuric acid is less resistant to temperature change than water.
 C) Water has a high specific heat due to the hydrogen bonding between water molecules.
 D) More heat is required to raise the temperature of 1 g of benzene 1 than to raise the temperature of 1 g of water 1 .
 E) Water is less resistant to temperature change than ethyl alcohol.
 F) Benzene is more resistant to temperature change than sulfuric acid.
 G) Ethyl alcohol likely exhibits more hydrogen bonding than water.
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wrote...
#1
Educator
12 years ago
Quote from: iamnew (12 years ago)
A) More heat is required to raise the temperature of 1 g of water 1 than to raise the temperature of 1 g of ethyl alcohol 1 . TRUE
 B) Sulfuric acid is less resistant to temperature change than water. TRUE
 C) Water has a high specific heat due to the hydrogen bonding between water molecules. TRUE
 D) More heat is required to raise the temperature of 1 g of benzene 1 than to raise the temperature of 1 g of water 1 . FALSE
 E) Water is less resistant to temperature change than ethyl alcohol. FALSE
 F) Benzene is more resistant to temperature change than sulfuric acid. TRUE
 G) Ethyl alcohol likely exhibits more hydrogen bonding than water.
FALSE
iamnew Author
wrote...
#2
12 years ago
That was the same answers given on the "ask yahoo" and they were wrong. But thank you for your help anyway. The correct answer is False, False, False, True, True, True, True.
wrote...
#3
Educator
12 years ago
More heat is required to raise the temperature of 1 g of water 1 than to raise the temperature of 1 g of ethyl alcohol 1.

I can't see why that's false Undecided
wrote...
#4
Donated
Valued Member
12 years ago
Quote from: iamnew (12 years ago)
"ask yahoo"

What's that?
wrote...
#5
Educator
12 years ago
Quote from: star (12 years ago)
Quote from: iamnew (12 years ago)
"ask yahoo"

What's that?

Kind of like what we have here (though not a forum), but for all types of questions.
DJ
wrote...
#6
12 years ago
Quote from: bio_man (12 years ago)
More heat is required to raise the temperature of 1 g of water 1 than to raise the temperature of 1 g of ethyl alcohol 1.

I can't see why that's false Undecided

When something boils, it goes from a liquid to a gas. The forces between the molecules must be broken in order for something to boil. So, if something has strong forces between its molecules, more energy will need to be put in to boil the something. Ethanol has fairly weak forces (dispersion forces) between its molecules. Water has strong polar bonds between its molecules. More energy is needed to break water's polar bonds than ethanol's dispersion forces. That means water has a higher boiling point, because more energy is needed to break the forces between its molecules.
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