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Topic: Heat, Work, Energy Problem!!!  (Read 3055 times)

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Offline EX5TASY

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Heat, Work, Energy Problem!!!
« on: April 03, 2007, 07:24:55 PM »

 Calculate q, w, E, and H for the process in which 78.0 g of nitrous oxide gas (N2O) is cooled from 161°C to 59°C at constant pressure of 5.00 atm. (See Table 9.1.)

I'm confused in how to find q, because the temperature is in Celsius, rather than Joules. Is there supposed to be a conversion somewhere? My book is useless :(

allanf

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Re: Heat, Work, Energy Problem!!!
« Reply #1 on: April 03, 2007, 08:10:51 PM »
Joules is not a measure of temperature, its a measure of energy.

The heat, q, is the amount of energy in joules lost during the cooling, this comes from the heat capacity of the material and the temperature change.

Offline EX5TASY

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Re: Heat, Work, Energy Problem!!!
« Reply #2 on: April 03, 2007, 08:55:09 PM »
Nevermind, I understnad how to do it now!

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