4
lesson pretestMultiple Choice

Pretest

Question 4 • Chemistry

Which equation agrees with the ideal gas law?

Answer
A
the fraction with numerator cap p sub 1 and denominator cap p sub 2 is equal to the fraction with numerator cap t sub 2 and denominator cap t sub 1
B
cap v sub 1 n sub 1 is equal to cap v sub 2 n sub 2
C
the fraction with numerator cap v sub 1 and denominator cap t sub 1 is equal to the fraction with numerator cap v sub 2 and denominator cap t sub 2
D
cap p sub 1 n sub 1 is equal to cap p sub 2 n sub 2

Explanation

From the ideal gas law, PV = nRT. If pressure and the amount of gas stay constant, divide by P to get V/T = nR/P, which is also constant. Therefore V₁/T₁ = V₂/T₂, the equation stating that volume and temperature change proportionally.

AI-written and checked against the verified answer.

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