AP EAMCET · PHYSICS · Kinetic Theory of Gases
The specific heat capacities of an ideal gas at the constant pressure and at constant volume are \(620 \mathrm{Jkg}^{-1} \mathrm{~K}^{-1}\) and \(420 \mathrm{Jkg}^{-1} \mathrm{~K}^{-1}\) respectively. The density of the gas at STP is approximately,
- A \(2.88 \mathrm{kgm}^{-3}\)
- B \(4.86 \mathrm{kgm}^{-3}\)
- C \(3.88 \mathrm{kgm}^{-3}\)
- D \(1.86 \mathrm{kgm}^{-3}\)
Answer & Solution
Correct Answer
(D) \(1.86 \mathrm{kgm}^{-3}\)
Step-by-step Solution
Detailed explanation
Given, specific heat capacity of a gas at constant pressure, \(C_p=620 \mathrm{~J} \mathrm{~kg}^{-1} \mathrm{~K}^{-1}\) and specific heat capacity of gas at constant volume, \(C_V=420 \mathrm{~J} \mathrm{~kg}^{-1} \mathrm{~K}^{-1}\) \(\because\) Molar specific heat of gas at…
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