Class 11PhysicsKinetic Theory of GasesMolar Specific Heat of gas and relation between them (Mayer's formula)
Medium$A$ cylinder with fixed capacity of $67.2 \, L$ contains helium gas at $STP$. The amount of heat needed to raise the temperature of the gas by $20 \, ^oC$ is ..... $J$ [Given that $R = 8.31 \, J \, mol^{-1} \, K^{-1}$]
- A$350$
- B$700$
- C$748$
- D$374$
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The molar specific heats of an ideal gas at constant pressure and volume are denoted by $C_{P}$ and $C_{V}$ respectively. If $\gamma = \frac{C_{P}}{C_{V}}$ and $R$ is the universal gas constant,then $C_{V}$ is equal to
What is the molar heat capacity of water? ($R$ is the universal gas constant.)
Medium
View SolutionAccording to the law of equipartition of energy, the molar specific heat of a diatomic gas at constant volume, where the molecule has one additional vibrational mode, is:
$A$ diatomic gas is heated at constant pressure. What fraction of the heat energy is used to increase the internal energy?
Column-$I$ represents the type of gas and Column-$II$ represents the ${C_P}$ value for that type of gas. Match them correctly:
Column-$I$ Column-$II$ $(a)$ Monoatomic gas $(i)$ ${C_P} = \frac{3}{2}R$ $(b)$ Diatomic gas with vibration $(ii)$ ${C_P} = \frac{5}{2}R$ $(iii)$ ${C_P} = \frac{7}{2}R$ $(iv)$ ${C_P} = \frac{9}{2}R$
| Column-$I$ | Column-$II$ |
| $(a)$ Monoatomic gas | $(i)$ ${C_P} = \frac{3}{2}R$ |
| $(b)$ Diatomic gas with vibration | $(ii)$ ${C_P} = \frac{5}{2}R$ |
| $(iii)$ ${C_P} = \frac{7}{2}R$ | |
| $(iv)$ ${C_P} = \frac{9}{2}R$ |
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