- #1
M. next
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We know that if we brought a body at temperature T' in contact with a heat reservoir at temperature T (where T' < T) entropy of the universe increases.
What if we brought a body at temperature T' in contact with a reservoir at temperature T ( where T' > T)?
It is supposed also that the entropy of the universe increases.
But when am trying to proof it mathematically, I fall into another question: in the first case, the temperature of the heat reservoir remains the same, it is a reservoir after all, but in the second case, does the temperature of the body stay the same? Or it decreases by a certain amount. And the heat reservoir in the second case, does it temperature increases? Or since it is a heat reservoir, it should change the temperature of the body and not vice versa. I should have some misconception going on.
Do you have any idea?
Thanks in advance.
What if we brought a body at temperature T' in contact with a reservoir at temperature T ( where T' > T)?
It is supposed also that the entropy of the universe increases.
But when am trying to proof it mathematically, I fall into another question: in the first case, the temperature of the heat reservoir remains the same, it is a reservoir after all, but in the second case, does the temperature of the body stay the same? Or it decreases by a certain amount. And the heat reservoir in the second case, does it temperature increases? Or since it is a heat reservoir, it should change the temperature of the body and not vice versa. I should have some misconception going on.
Do you have any idea?
Thanks in advance.