The gas laws

3 marks · Normal

A fixed mass of gas has pressure Pa at K. The temperature is raised to K and the volume remains constant.

Calculate the new pressure of the gas.

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

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133,000 Pa (±1000)

Also accept: 133 kPa; 133333 Pa; 133,333 Pa

Common mistakes: Not using Kelvin temperatures; Incorrect rearrangement

Show mark scheme and worked solution

Marking points

M1 · 1 mark · States or uses the equation

M2 · 1 mark · Substitutes values correctly: (follow-through)

A1 · 1 mark · Calculates new pressure correctly to 3 s.f. (133,000 Pa) with unit. (follow-through)

Worked solution

Final answer: Pa (to 3 significant figures).