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  • The average degree of freedom per molecule for a gas is 6. The gas performs when it expands at constant pressure. The heat absorbed by gas is -Option: 1</st

The average degree of freedom per molecule for a gas is 6. The gas performs when it expands at constant pressure. The heat absorbed by gas is -

Option: 1

75 \mathrm{~J}


Option: 2

100 \mathrm{~J}


Option: 3

150 \mathrm{~J}


Option: 4

125 \mathrm{~J}


Answers (1)

best_answer

As f = 6 (given)

\therefore \gamma=1+\frac{2}{7}=1+\frac{2}{6}=\frac{4}{3}

Fraction of energy given fer o external work \frac{\Delta \omega}{\Delta \varphi}=\left(1-\frac{1}{\gamma}\right)

\begin{array}{rlrl} \Rightarrow \frac{25}{\Delta \varphi} & =\left(1-\frac{1}{4 / 3}\right) \quad \therefore \Delta \varphi & =25 \times 4 \\ & =100 \text { joule } \end{array}

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vinayak

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