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Old May 2nd 2012, 10:28 AM   #1
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Final temp. of gas in an isothermic process equal to initial temp?

For a gas undergoing an isothermal quasi-static process, the temperature of the gas remains constant throughout the process. What is meant by constant temperature? Does it mean that the temperature before, during and after the isothermal process are equal?
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Old Mar 7th 2014, 02:16 PM   #2
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Yes, in an isothermic process the temperature remains constant. One thing to note, you can not say that before and after you have an isothermic process. You can say if you start in an isothermic process that the "state" ends in an isothermic process. Example, if I start state1 in an isothermic process then I am in an isothermic process till the "state" changes. Here is an example of a P vs v diagram showing state A to state B in an isothermic process:

Hope this helps
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