A) Adiabatic process : \[\Delta U=-\,W\]
B) Cyclic process : \[q=-\,W\]
C) Isothermal process : \[q=-W\]
D) Isochoric process : \[\Delta U=q\]
Correct Answer: A
Solution :
1st law of thermodynamics \[\Delta E=q+w\] |
1. Adiabatic process |
\[q=0,(\Delta E=w)or\,(\Delta U=w)\] |
2. Cyclic process |
\[\Delta E=0,(q=-w)\] |
3. Isothermal process |
\[\Delta E=n{{C}_{V}}\Delta T.(\Delta T=0)\] |
\[\Delta E=0,(q=-w)\] |
4. Isochoric process \[\Delta V=0\] |
\[W=P\Delta V=0\] |
\[\Delta E=q.\] |
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