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in figure above the system change from A to B through ACB path, the heat absorbs...

in figure above the system change from A to B through ACB path, the
heat absorbs 90 J and the work done by system is 40J. Find:
A. The heat absorbed by system through ADB path, if the work done by system 15J.
B. The heat absorbed by system when transfer from B to A through AB path, if the
work done by system 25J.

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