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Grade: 12th pass 

                        
I have found two different answers for the numerical problem given in above image.please solve this problem and tell me correct answer.
4 years ago

Answers : (1)

Vikas TU
12278 Points 
							
Work done = P x dV = > 2 x (20 -10) = 2 x 10 =20 Joule.
In chemistry,
dU = dQ + dW
    = 300 x 4.2 + 20
    = 1280 Joule.
4 years ago
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