Question

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

Answer 1

P = 34.95 atm

Step-by-step explanation:

Given data:

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