In a balloon with a capacity of 300m3 there is hydrogen at a temperature of 27 degrees C
September 27, 2021 | education
| In a balloon with a capacity of 300m3 there is hydrogen at a temperature of 27 degrees C and a pressure of 10 in the fifth Pa. Determine the mass of hydrogen.
Given:
V = 300 m³;
T = 27 C = 300 K;
p = 10⁵ Pa;
R = 8, 31 J / mol * K
m hydrogen =?
Solution:
Let’s use the Mendeleev-Clapeyron equation:
pV = m / M RT.
Let us express the mass m from the equation:
m = pVM / RT.
M – molar mass of hydrogen H2 is found as 2 atoms * m of one atom.
M = 2 g / mol.
Substitute the available values in the formula for mass m.
m = 10⁵ Pa * 300 m³ * 2 g / mol / 8.31 J / mol * K * 300 K = 24,067 kg ≈ 24 tons.
Answer: 24 tons.
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