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poreally6456
23.03.2021 •
Chemistry
Describe two processes that could cause water
vapour in the atmosphere to condense and form
clouds.
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Ответ:
1.50 L.
Explanation:
From the general gas law:PV = nRT,
Where, P is the pressure if the gas,
V is the volume if the gas container,
n is the no. of gas moles,
R is the general gas constant,
T is the temperature of the gas.
At constant P and T:n₁V₂ = n₂V₁.
V₁ = 1.0 L, V₂ = ??? L.
n₁ = mass/molar mass = (2.05 g)/(32.0 g/mol) = 0.064 mol.
n₂ is the no. of moles of the total gas (2.05 g + 1.0 g).n₂ = n₁ + (1.00 g)/(32.0 g/mol) = 0.0953 mol.
∴ V₂ = n₂V₁/n₁ = (0.0953 mol)(1.0 L)/(0.064 mol) = 1.489 L ≅ 1.50 L.