AP EAMCET · PHYSICS · Thermodynamics
The change in internal energy when \(20 \mathrm{~g}\) of a gas is heated from \(25^{\circ} \mathrm{C}\) to \(35^{\circ} \mathrm{C}\) at constant volume is (Specific heat capacity of the gas at constant volume
- A \(74 \mathrm{~J}\)
- B \(336 \mathrm{~J}\)
- C \(136 \mathrm{~J}\)
- D \(168 \mathrm{~J}\)
Answer & Solution
Correct Answer
(D) \(168 \mathrm{~J}\)
Step-by-step Solution
Detailed explanation
Mass of gas, \(\mathrm{m}=20 \mathrm{~g}\) Change in temperature, \(\Delta \mathrm{T}=35^{\circ} \mathrm{C}-25^{\circ} \mathrm{C}=10^{\circ} \mathrm{C}\) Specific heat capacity of the gas. \(\mathrm{C}_{\mathrm{v}}=0.2 \mathrm{cal} \mathrm{g}^{-1}{ }^{\circ} \mathrm{C}^{-1}\)…
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