Calculate the pressure in bar of 2520 moles of hydrogen gas stored at 27 °c in the 180-l storage tank of a modern hydrogen-powered car.

347 bar

Explanation:

1) Data:

n = 2520 moles

T = 27 + 273.15 = 298.15 K

V = 180 liter

p = ?

2) Formula

Ideal gas equation: pV = nRT

3) Solution:

p = nRT/V = 2520 mol × 0.0821 atm×liter/K×mol ×298.15K / 180 liter = 342.7 atm

Conversion: 342.7 atm × 1,01325 bar / atm = 347 bar

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