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Date May 2022 Marks available 1 Reference code 22M.1.SL.TZ1.12
Level Standard level Paper Paper 1 Time zone 1
Command term Question number 12 Adapted from N/A

Question

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

What is the quantity of the gas?

A.  2×105R mol

B.  200R mol

C.  80R mol

D.  45R mol

Markscheme

C

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

Core » Topic 3: Thermal physics » 3.2 – Modelling a gas
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