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MHT CET 2024 (3 May, Shift 1) · Thermodynamic Processes

Thermodynamic Processes question from MHT CET 2024 (3 May, Shift 1)

Q111MHT CET 2024 · 3 MAY · SHIFT 1Medium

Thermodynamic Processes

The r.m.s. velocity of hydrogen at S.T.P. is ' $u$ ' $\text{m/s}$ . If the gas is heated at constant pressure till its volume becomes three times, then the final temperature of the gas and the r.m.s. speed are respectively

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Answer: (a)

At constant pressure $V \propto T$ : $T_2 = 3 \times 273 = 819\text{ K}$ .
$v_{rms} \propto \sqrt{T}$ , so $v_2 = \sqrt{3}\,u$ .
So the answer is (a) $819\text{ K}, \sqrt{3}u\text{ m/s}$ .

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