Question 23 • Chemistry
At constant temperature, Boyle’s law gives P₁V₁ = P₂V₂. Substitute the values: (1.00 atm)(0.450 L) = P₂(2.00 L), so P₂ = 0.450 ÷ 2.00 = 0.225 atm. The pressure is therefore 0.225 atm, choice C.
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