Question

8.
To a system, 300 joules of heat is given
and it does 60 joules of work. The change
in internal energy of the system is (in joule)
1) 240 2) 156.5 3)-300
4) -528.2

Answer 1

Answer:

HY MATE HERE IS YOUR ANSWER

From first law of thermodynamic, Q=ΔU+W

As the work done on the system so it will be negative i.e, W=−320J and since internal energy is increased so it would be positive i.e, ΔU=560J

Thus, dQ=560−320=240J 

As Q is positive so the system will absorb heat.  

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Answer 2

Answer:

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