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When an ideal monoatomic gas is heated at constant pressure, fraction of heat energy supplied which increases the internal energy of gas , isA. `3//7`B. `5//7`C. `2//5`D. `3//5` |
Answer» Correct Answer - D For gas heated at constant pressure `Q = nC_(p)DeltaT=n 5/2 RDeltaT` Increase in internal energy `DeltaU=nC_(V)DeltaT=n.3/2RDeltaT` `:.` fractional of heat energy supplied = `(DeltaU)/(Q)` `=((3//2)nRT)/((5//2)nRT) = 3/5` |
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