NEET Chemistry States Of Matter Ideal Gas Equation MCQs

A mixture of 1 mol of He and 1 mol of CO$_2$ is contained in a vessel of volume V at 20°C. If the mixture behaves ideally, what is the pressure exerted by He?

Two separate containers of equal volume V contain ideal gases A and B at the same temperature T. The molar mass of A is twice that of B. The ratio of the densities of A and B ($\rho_A / \rho_B$) is:

A real gas most closely approaches ideal behavior under which of the following conditions?

A vessel contains an ideal gas at pressure P and temperature T. If the root mean square speed of the gas molecules doubles, keeping the volume constant, the new pressure P' will be:

At what temperature will the average translational kinetic energy of a gas molecule be equal to the energy required to break a bond of energy 2 eV? (Boltzmann constant $k_B = 1.38 imes 10^{-23} J/K$, $1 eV = 1.6 imes 10^{-19} J$)

An ideal gas undergoes a process in which its pressure P and volume V are related by $PV^n = constant$, where n is a constant. If the gas expands adiabatically ($n = \gamma$, where $\gamma = C_P/C_V$), which of the following statements is TRUE regarding the work done by the gas?

A mixture of 2 moles of He and 1 mole of $N_2$ is contained in a 10 L vessel at 27°C. What is the partial pressure of nitrogen?

At what temperature will the average kinetic energy of gas molecules be double its value at 27°C?

Which of the following gases is expected to deviate most from ideal behavior at high pressure?

A container holds 4 g of helium at a pressure of 2 atm and a temperature of 300 K. If 8 g of oxygen is added to the container while maintaining the same volume and temperature, what is the new total pressure?