DP Physics (last assessment 2024)

Question 18N.1.SL.TZ0.11

Date	November 2018	Marks available	[Maximum mark: 1]	Reference code	18N.1.SL.TZ0.11
Level	SL	Paper	1	Time zone	TZ0
Command term		Question number	11	Adapted from	N/A

11.

[Maximum mark: 1]

18N.1.SL.TZ0.11

A container is filled with a mixture of helium and oxygen at the same temperature. The molar mass of helium is 4 g mol^–1 and that of oxygen is 32 g mol^–1.

What is the ratio $\frac{{{\text{average speed of helium molecules}}}}{{{\text{average speed of oxygen molecules}}}}$ ?

A. $\frac{1}{8}$

B. $\frac{1}{{\sqrt 8 }}$

C. ${\sqrt 8 }$

D. 8

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

Core » Topic 3: Thermal physics

Question 18N.1.SL.TZ0.11

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