DP Chemistry (last assessment 2024)

Test builder »

Question 19M.1.sl.TZ2.3

Select a Test
Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.sl.TZ2.3
Level sl Paper 1 Time zone TZ2
Command term Question number 3 Adapted from N/A
3.
[Maximum mark: 1]
19M.1.sl.TZ2.3

What is the volume of gas when the pressure on 100 cm3 of gas is changed from 400 kPa to 200 kPa at constant temperature?

A. 50.0 cm3

B. 100 cm3

C. 200 cm3

D. 800 cm3

[1]

Markscheme

C

Examiners report

80 % of the candidates were able to deduce the new volume of a sample of gas after the pressure was halved. The most commonly chosen distractor (A) was the value that assumed a direct proportionality between volume and pressure.

Syllabus sections