List of top Physics Questions on Thermodynamics asked in AP ECET Metallurgical Eng

The volume V of an enclosure contains a mixture of gases like 16 g of oxygen, 28 g of nitrogen and 44 g of carbon dioxide at absolute temperature T. The pressure of the mixture of gases is (R is universal gas constant)

Certain quantity of heat is supplied to a monoatomic ideal gas which expands at constant pressure. The percentage of heat that goes into work done by the gas is

The wrong statement among the following 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. If $L_{1}$ and $L_{2}$ are the lengths of the gas column before and after the expansion, then the value of $T_{1}/T_{2}$ will be}

A gas behaves more closely as an ideal gas at

A carnot engine having an efficiency of $\frac{1}{10}$ as heat engine, is used as a refrigerator. If the work done on the system is $10 \text{ J}$, the amount of energy absorbed from the reservoir at lower temperature is

A rigid diatomic ideal gas undergoes an adiabatic process at room temperature. The relation between temperature and volume of this process is $TV^x = \text{constant}$. Then $x$ is

The specific heat at constant volume for a monoatomic gas is $0.075\text{ cal/kg}\cdot\text{K}$ and its gram molecular specific heat is $3\text{ cal/mol}\cdot\text{K}$. Then mass of one atom of that gas is

During the free expansion of an ideal gas, which of the following physical quantity remains constant

If the pressure of an ideal gas contained in a closed vessel is increased by $0.5\%$, the increase in temperature is $2^\circ\text{C}$. The initial temperature of the gas is