Heat Capacity and Latent Heat

The ratio of pressure and volume is constant and is equal to $1 atm/L$ for a monoatomic gas, then the molar heat capacity at constant pressure would be-

What is R in the following equation?

 ${\mathrm{C}}_{\mathrm{p}}-{\mathrm{C}}_{\mathrm{v}}=\mathrm{R}$

Among the following statements, select the correct statements.
I. Combustion of organic compounds is an exothermic reaction.
II. There is decrease in entropy by crystallisation of a liquid into a solid.
III. The molar enthalpy of vapourisation of acetone is less than that of water.

 At STP, an unknown gas of volume $5600 \mathrm{mL}$, requires $52.25 \mathrm{J}$ of heat to raise its temperature by$10°\mathrm{C}$ at a constant volume. The gas is
 

A monatomic ideal gas undergoes a process in which $\frac{\mathrm{P}}{\mathrm{V}}=1$. What is the molar heat capacity of the gas?

$\mathrm{X}\mathrm{ }\mathrm{g}$ of ice at $0^{\mathrm{o}}\mathrm{C}$ is added to 340g of water at ${20}^{\mathrm{o}}\mathrm{C}$ . The final temperature of the resultant mixture is $5^{\mathrm{o}}\mathrm{C}$ . The value of $\mathrm{X}$ (in g) is closest to

[Heat of fusion of ice $=333\mathrm{ }\mathrm{J}/\mathrm{g}$ ; Specific heat of water $=4.184\mathrm{ }\mathrm{J}/\mathrm{g}.\mathrm{K}$ ]

Assertion: Specific heat of gas at constant pressure is greater than its specific heat at constant volume.

Reason: At constant pressure, some heat is spent in expansion of the gas.

The value of $C_P$ and $C_V$ for a gas are $4$R and $3$R. The vapour density of gas is $30$. Its atomic mass will be

Equal volumes of monoatomic and diatomic gases are taken at same temperature and pressure. The ratio of adiabatic exponents of the gases will be-

A monoatomic ideal gas goes through a process in which, the ratio of $\mathrm{P}$ to$\mathrm{V}$ at any instance is constant and equal to unity. The molar heat capacity of gas is

Carbon monoxide is carried around a closed cyclic process $abc$, in which $bc$ is an isothermal process, as shown in the diagram. The gas absorbs $7000 \mathrm{J}$ of heat as its temperature is increased from $300 \mathrm{K}$ to $1000 \mathrm{K}$ in going from $a$ to $b$. The quantity of heat ejected by the gas during the process $ca$ is

For polytropic process ${\mathrm{PV}}^{\mathrm{n}}=$constant, the ${\mathrm{C}}_{\mathrm{m}}$ (molar heat capacity) of an ideal gas is given by -

For an ideal gas $\frac{{\text{C}}_{\text{p, m}}}{{\text{C}}_{\text{v, m}}}=\mathrm{\gamma }$. The molecular mass of the gas is $\mathrm{M}$, its specific heat capacity at constant volume is -   

$7$ moles of a tetra-atomic non-linear gas $\mathrm{A} \mathrm{at} 10 \mathrm{atm}$ and $\mathrm{T} \mathrm{K}$ are mixed with $6$ moles of another gas $\mathrm{B}$ at $\frac{\text{T}}{3}K$ and $5 \mathrm{atm}$ in a closed, rigid vessel without energy transfer with surroundings. If final temperature of mixture was $\frac{5\text{T}}{6}K$, then gas $\mathrm{B}$ is? (Assuming all modes of energy are active)

The ratio of the speed of sound in nitrogen gas to that in helium gas, at $300 \mathrm{K}$ is 

A monatomic ideal gas undergoes a process in which the ratio of $\mathrm{P}$ to $\mathrm{V}$ at any instant is constant and equal to 1. What is the molar heat capacity of the gas?

For polytropic process PVⁿ = constant, C_m (molar heat capacity) of an ideal gas is given by :

1 mole of a gas with $\gamma$ = 7/5  is mixed with 1 mole of a gas $\gamma$ = 5/3, then the value of $\gamma$ for the resulting mixture is