A gas occupies a volume of 20litres at 270C and 700 mm of pressure.
Calculate its volume at S.T.P
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9.25 L
Explanation:
Given: V₂ = 20 L, T₂ = 270 + 273 = 543 k, P₂ = 700/760 atm = 0.92 atm
V₁ = ?, T₁ = 273 k, P₁ = 1 atm
We know that,
P₂V₂/T₂ = P₁V₁/T₁
V₁ = P₂V₂T₁/ P₁T₂
= 0.92 × 20 × 273/ 1 × 543
= 9.25 L
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