The internal energy (U), pressure (P) and volume (V) of an ideal gas are related as U $=$ 3PV + 4. The gas is :
Solution
U = 3PV + 4<br><br>$\Rightarrow$ ${{nf} \over 2}$RT = 3PV + 4<br><br>$\Rightarrow$ ${{f} \over 2}$PV = 3PV + 4<br><br>$\Rightarrow$ f = 6 + ${8 \over {PV}}$<br><br>Since degree of freedom is more than 6 therefore gas is polyatomic.
About this question
Subject: Physics · Chapter: Thermodynamics · Topic: Zeroth and First Law
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