If 90 g of water is converted to steam at STP and behaves ideally, what volume will it occupy?

The kinetic energy of one g-mole of a gas at normal temperature and pressure is ($R = 8.31\;J/mol - K$)

A cylinder contains $10\;kg$ of gas at pressure of ${10^7}\;N/{m^2}.$ The quantity of gas taken out of the cylinder, if final pressure is $2.5 imes {10^6}\;N/{m^2},$ will be (Temperature of gas is constant)

How does the de-Broglie wavelength of a neutron in thermal equilibrium change if the temperature is doubled?

Mean kinetic energy (or average energy) per $g$ molecule of a monoatomic gas is given by

The average translational kinetic energy of a hydrogen gas molecules at NTP will be

[Boltzmann’s constant ${k_B} = 1.38 imes {10^{ - 23}}J/K$]

The average kinetic energy of a helium atom at ${30^ \circ }C$ is

A box contains n molecules of a gas. How will the pressure of the gas be effected, if the number of molecules is made $2n$

If masses of all molecules of a gas are halved and their speeds are doubles, then the ratio of initial and final pressures is

If the mean free path of a gas is $\lambda$, what will be the mean free path if the number density is quadrupled, keeping all other factors constant?

Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will