Posted by Jon on Tuesday, October 26, 2010 at 11:00am.
The latent heat of vaporization of ethanol is 200 calories/gram. This means that _____.
a) about 200 calories of heat must be added to 1 gram of ethanol to change its temperature
b) about 200 calories of heat must be added to 1 gram of ethanol to convert it from a solid to a liquid
c) about 200 calories of heat must be added to 1 gram of ethanol to convert it from a liquid to a gas
How do I figure this one out?

IPC  bobpursley, Tuesday, October 26, 2010 at 11:18am
How do you figure this out?
Learn what the heat of vaporization is:
http://www.physlink.com/education/askexperts/ae93.cfm

IPC  Jon, Tuesday, October 26, 2010 at 11:21am
Okay, thank you.

IPC  shaquita, Friday, October 19, 2012 at 12:29pm
a block of aluminum weighing 140. g is cooled from 98.4 c to 62.2 c with the release of 1080 joules of heat. from this data, calculate the specific heat of aluminum

IPC  Anonymous, Thursday, December 20, 2012 at 8:56am
What amount of heat is required to raise the temperature of 20 grams of water from 10°C to 30°C? The specific heat of water is 4.18 J/g°C.Select one of the options below as your answer: A. 1200 joules B. 1500 joules C. 2000 joules D. 2300 joules E. 3000 joules
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