DP Physics (first assessment 2025)

Question 21M.1A.SL.TZ2.11

Date	May 2021	Marks available	[Maximum mark: 1]	Reference code	21M.1A.SL.TZ2.11
Level	SL	Paper	1A	Time zone	TZ2
Command term		Question number	11	Adapted from	N/A

11.

[Maximum mark: 1]

21M.1A.SL.TZ2.11

Two identical containers X and Y each contain an ideal gas. X has N molecules of gas at an absolute temperature of T and Y has 3N molecules of gas at an absolute temperature of $\frac{T}{2}$ What is the ratio of the pressures $\frac{P_{Y}}{P_{X}}$ ?

A. $\frac{1}{6}$

B. $\frac{2}{3}$

C. $\frac{3}{2}$

D. $6$

[1]

Markscheme

Syllabus sections

B. The particulate nature of matter » B.3 Gas laws

Question 21M.1A.SL.TZ2.11

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