Answers Chemistry PretestQuestion 6

6

lesson pretestMultiple Choice

Pretest

Question 6 • Chemistry

Which equation represents the combined gas law?

Answer

A

the fraction with numerator cap p sub 1 cap v sub 1 and denominator cap t sub 1 is equal to the fraction with numerator cap p sub 2 cap v sub 2 and denominator cap t sub 2

B

cap p sub 1 cap v sub 1 is equal to cap p sub 2 cap v sub 2

C

cap p sub 1 cap v sub 1 cap t sub 1 is equal to cap p sub 2 cap v sub 2 cap t sub 2

D

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

Explanation

The combined gas law relates pressure, volume, and temperature for a fixed amount of gas: P₁V₁/T₁ = P₂V₂/T₂. Choice A shows this relationship. Choice B leaves out temperature, so it represents Boyle’s law instead.

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