DP Physics (first assessment 2025)

Question 21N.1A.SL.TZ0.10

Date	November 2021	Marks available	[Maximum mark: 1]	Reference code	21N.1A.SL.TZ0.10
Level	SL	Paper	1A	Time zone	TZ0
Command term		Question number	10	Adapted from	N/A

10.

[Maximum mark: 1]

21N.1A.SL.TZ0.10

The molar mass of an ideal gas is $M$ . A fixed mass $m$ of the gas expands at a constant pressure $p$ . The graph shows the variation with temperature T of the gas volume V.

What is the gradient of the graph?

A. $\frac{M p}{m R}$

B. $\frac{M R}{m p}$

C. $\frac{m p}{M R}$

D. $\frac{m R}{M p}$

[1]

Markscheme

Syllabus sections

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

Question 21N.1A.SL.TZ0.10

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