A system releases 255 cal of heat to the surroundings while delivering 428 cal of work. what is the change in internal energy of
the system (in cal)?
1 answer:
Answer:-683 cal
Explanation:
Given
Heat released by system Q=-255 cal
as heat released is taken as negative and vice-versa
Work done by system W=428 cal
From First law of thermodynamics
=change in internal Energy
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