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Posted on: 08:47:27 PM on May 17, 2018
a system absorbs 10 kj of heat and does 4 kj of work. the internal energy of the system


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Posted on: 12:12:54 PM on May 21, 2018
dQ=dU+dW. dQ=+10 kj,becoz heat given to the system. dW=+4kj,becoz work done by the system. therefore,dU=dQ-dW=10-4=6kj





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