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A diatomic ga...

Question

A diatomic gas is heated at constant pressure. If 105 J of heat is given to the gas, find the change in internal energy of the gas.

A

30 J

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B

35 J

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C

55 J

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D

75 J

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Solution

The correct option is D 75 J
$Δ Q = Δ U + Δ W = Δ U + n R Δ T Δ Q = Δ U (1 + \frac{2}{f}) Δ U = 75 J$

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