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Topic: Heat, Work, Energy Problem!!!  (Read 3165 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 :(
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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.
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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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