NEET Physics Thermodynamics Questions Solved

NEET - 2010

If U and W represent the increase in internal energy and work done by the system respectively in a thermodynamical process,which of the following is true?

(a) U=-W, in a adiabatic process

(b) U=W, in a isothermal process

(c) U=W, in adiabatic process

(d) U=-W,in a isothermal process 

From first law of thermodynamics 

           Q=U+W

For adiabatic process Q=0

             U=-W

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