Ideal Gas Equation

When an ideal gas undergoes unrestrained expansion, no cooling occurs because the molecules

If 10⁻⁴ dm³ of water is introduced into a 1 dm³ flask at 300 K, how many moles of water are in the vapour phase when equilibrium is established?

(Given: Vapour pressure of H₂O at 300 K is 3170 Pa; R = 8.314 JK⁻¹ mol⁻¹)

What is the density of N₂ gas at 227°C and 5.00 atm pressure? (R = 0.082 L atm K^–1 mol^–1)

At identical temperature and pressure, the rate of diffusion of hydrogen gas is `3sqrt3` times that of a hydrocarbon having molecular formula C_nH_2n–2. What is the value of n?

For an ideal gas, at constant temperature and pressure, the volume is ____________.

Give a suitable explanation for the following facts about gases.

Gases don’t settle at the bottom of a container

Consider the following statements

i) Atmospheric pressure is less at the top of a mountain than at sea level

ii) Gases are much more compressible than solids or liquids

iii) When the atmospheric pressure increases the height of the mercury column rises

Select the correct statement

Solve the following.

Calculate the pressure in atm of 1.0 mole of helium in a 2.0 dm³ container at 20.0°C.