DP Physics (first assessment 2025)

Question 22M.1A.SL.TZ1.12

Date	May 2022	Marks available	[Maximum mark: 1]	Reference code	22M.1A.SL.TZ1.12
Level	SL	Paper	1A	Time zone	TZ1
Command term		Question number	12	Adapted from	N/A

12.

[Maximum mark: 1]

22M.1A.SL.TZ1.12

An ideal gas is maintained at a temperature of 100 K. The variation of the pressure P and $\frac{1}{volume}$ of the gas is shown.

What is the quantity of the gas?

A. $\frac{2 \times 10^{5}}{R} mol$

B. $\frac{200}{R} mol$

C. $\frac{80}{R} mol$

D. $\frac{4}{5 R} mol$

[1]

Markscheme

Examiners report

This question tested candidate understanding of the relationship between the slope of a graph and the ideal gas law. SL candidates found this question more difficult than their HL counterparts, but in both groups of students, option C was the most frequent (and correct) answer.

Syllabus sections

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

Question 22M.1A.SL.TZ1.12

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