List of top Physics Questions on Thermodynamics asked in MHT CET

A diatomic gas $\left(\gamma = \frac{7}{5}\right)$ is compressed adiabatically to volume $\frac{\text{V}_0}{32}$ , where $\text{V}_0$ is its initial volume. The initial temperature of the gas is $\text{T}_\text{i}$ in kelvin and the final temperature is $\text{x}\text{T}_\text{i}$ in kelvin. The value of $x$ is
A gas undergoes a change in which its pressure ' $P$ ' and volume ' $V$ ' are related as $PV^n = \text{constant}$, where $n$ is a constant. If the specific heat of the gas in this change is zero, then the value of $n$ is ($\gamma = \text{adiabatic ratio}$)}
A gas absorbs \( 100 \, \text{J} \) of heat while performing \( 40 \, \text{J} \) of work on its surroundings. Calculate the change in internal energy of the gas.
In adiabatic compression, which of the following is true?
A gas expands from a volume of 2 m\(^3\) to a volume of 5 m\(^3\) at a constant pressure of \( 2 \times 10^5 \, \text{Pa} \). Calculate the work done by the gas.
A monoatomic ideal gas, initially at temperature ' \(T_1\) ' is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature ' \(T_2\) ' by releasing the piston suddenly. \(L_1\) and \(L_2\) are the lengths of the gas columns before and after the expansion respectively. Then \(\frac{T_1}{T_2}\) is
A cylinder of fixed capacity \( 67.2 \, \mathrm{L} \) contains helium gas at STP. The amount of heat needed to raise the temperature of the gas in the cylinder by \( 20^\circ \mathrm{C} \) is:
A monoatomic ideal gas, initially at temperature ' \(T_1\) ' is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature ' \(T_2\) ' by releasing the piston suddenly. \(L_1\) and \(L_2\) are the lengths of the gas columns before and after the expansion respectively. Then \(\frac{T_1}{T_2}\) is