The initial pressure exerted on 1.0 liter of gas is 100kPa. The pressure is changed and the new volume of gas is 0.25 liters. The pressure is changed to

A) 25 kpa

B) 200kpa

C) 400kpa

D) 4000kpa

400kpa

Explanation:

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C) 400 kpa

Explanation:

Boyle's Law states that at constant temperature, the volume of a given quantity of a gas varies inversely with its pressure.

P ∝ 1/V.

∴ P₁V₁ = P₂V₂.

P₁ = 100.0 kPa, V₁ = 1.0 L, P₂ = ? kPa, V₂ = 0.25 L.

∴ V₂ = P₁V₁/V₂ = (100.0 kPa) (1.0 L) / (0.25 L) = 400.0 kPa.