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MDCAT Chemistry Past Paper 2023 #Combined Gas Law #Gases

1

Choose the best answer

1 atm of nitrogen is at 25°C. Its pressure has increased to 2 atm at 50°C. Volume will change from 1 dm³ to: (MDCAT 2023)

Verified Answer & Explanation⌄

Correct Answer: A) 0.542 dm³

Concept Explanation

Using P₁V₁/T₁ = P₂V₂/T₂ gives V₂ = (1×1×323)/(2×298) ≈ 0.542 dm³.

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