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Change in the entropy of the universe

Posted: Fri Jan 27, 2017 9:14 am
by Ryan Cerny 3I
For dStotal = dSsys + dSsurr what conditions make dStotal = to 0?

Re: Change in the entropy of the universe

Posted: Fri Jan 27, 2017 10:43 am
by Amber Duong 1B
If temperature is constant for the system and its surroundings, the entropy for both are equal and opposite values. For example, the system losing heat is a negative entropy value while the surroundings gain that heat and have the opposite, positive entropy value. Thus, total entropy change of the universe is 0.