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Date May 2019 Marks available 1 Reference code 19M.1.SL.TZ2.11
Level Standard level Paper Paper 1 Time zone 2
Command term Question number 11 Adapted from N/A

Question

The temperature of a fixed mass of an ideal gas changes from 200 °C to 400 °C.

What is mean kinetic energy of gas at 200 °C mean kinetic energy of gas at 400 °C ?

A. 0.50

B. 0.70

C. 1.4

D. 2.0

Markscheme

B

Examiners report

Most candidates chose A having forgotten to convert from oC to K.

Syllabus sections

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