What pressure exists in a 150. L tank containing 5.0 kg of neon gas at 258 K?

P = 34.95 atm

Explanation:

Given dа ta:

Volume of tank = 150 L

Mass of neon gas = 5.0 Kg (5*1000 = 5000 g)

Temperature = 258 K

Pressure exist = ?

Solution:

Number of moles of neon gas:

Number of moles of neon gas = mass/molar mass

Number of moles of neon gas = 5000 g / 20.2 g/mol

Number of moles of neon gas = 247.5 mol

PV = nRT

P = nRT/V

P = 247.5 mol * 0.0821 atm. L. k⁻¹. mol⁻¹ * 258 K / 150 L

P = 5242.5 atm. L / 150 L

P = 34.95 atm