Pressure Exerted by a Gas

A fresh air is composed of nitrogen N₂ (78%) and oxygen O₂ (21%). Find the rms speed of N₂ and O₂ at 20°C.

If the rms speed of methane gas in the Jupiter’s atmosphere is 471.8 ms⁻¹, shows that the surface temperature of Jupiter is sub-zero.

Calculate the temperature at which the rms velocity of a gas triples its value at S.T.P. (standard temperature T₁ = 273 K)

A gas is at temperature 80°C and pressure 5 × 10⁻¹⁰ Nm⁻². What is the number of molecules per m³ if Boltzmann’s constant is 1.38 × 10⁻²³ J K⁻¹

If 10²⁰ oxygen molecules per second strike 4 cm² of wall at an angle of 30° with the normal when moving at a speed of 2 × 10³ ms⁻¹, find the pressure exerted on the wall. (mass of one oxygen atom = 2.67 × 10⁻²⁶ kg)

Estimate the total number of air molecules in a room of a capacity of 25 m³ at a temperature of 27°C.

A sample of an ideal gas is at equilibrium. Which of the following quantity is zero?

An ideal gas is maintained at constant pressure. If the temperature of an ideal gas increases from 100 K to 10000 K then the rms speed of the gas molecules