Question

If a gas is compressed adiabatically by doing work of 150 J. What is the change in internal energy
of the gas?​

Answer 1

First low of Thermodynamics -

dQ=dU+dW

dW=150

dQ=0  (adiabatic)

dU=dQ−dW

=−150

change in  internal energy =∣dU∣=150J

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Answer 2

Answer:

First low of Thermodynamics -

dQ=dU+dW

dW=150

dQ=0 (adiabatic)

dU=dQ-dW

=-150

change in internal energy =ldUl=150J