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Heat and Thermodynamics question

2023 · Shift 2 · Q38

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JEE Advanced
Physics
Heat and Thermodynamics
2023 · Shift 2 · Q38

Heat and Thermodynamics question

2023 · Shift 2 · Q38

JEE AdvancedPhysicsHeat and ThermodynamicsMCQ+3 / −1

An ideal gas is in thermodynamic equilibrium. The number of degrees of freedom of a molecule of the gas is

n

. The internal energy of one mole of the gas is

U_n

and the speed of sound in the gas is

\mathrm{v}_n

. At a fixed temperature and pressure, which of the following is the correct option?

A
$v_3 U_6$
B
$v_5 \gt v_3$ and $U_3 \gt U_5$
C
$v_5 \gt v_7$ and $U_5 \lt U_7$
D
$v_6 \lt v_7$ and $U_6 \lt U_7$

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