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← Topic 15 overviewTOPIC 15 ASSESSMENT

Ideal gases

CIE-style questions assess moles, the ideal gas law, kinetic theory, molecular energy and rms speed.

Objective question 1

One mole contains:

Objective question 2

The ideal gas equation requires temperature in:

Objective question 3

Ideal-gas molecules are assumed to undergo:

Objective question 4

Kinetic theory gives:

Objective question 5

Mean translational kinetic energy per molecule is:

Structured question 1

Calculate pressure of 0.50 mol ideal gas at 300 K in volume 0.010 m³. Use R = 8.31.

Structured question 2

Calculate mean translational kinetic energy at 300 K. Use k = 1.38 × 10⁻²³.

Structured question 3

Calculate rms speed for molar mass 0.028 kg mol⁻¹ at 300 K. Use R = 8.31.