Exam-style question
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If a gas occupies a volume of 2 m³ at a pressure of 100 kPa and the number of moles is 1, what is the temperature in Kelvin? Scenario focus: use ideal gas reasoning in a distinct A-Level Physics context and identify the relevant physical quantity before choosing the answer.
- A.200 K
- B.250 K
- C.300 K
- D.350 K
Model answer
What a good answer should say
- 200 K
Explanation
Why this works
The correct answer is 200 K. This option is correct for Thermal physics because it applies the ideal gas reasoning idea in the stem and keeps the relevant quantity, unit, and physical conclusion together.
The alternatives either use a neighbouring formula, omit a required variable, or describe a different physical situation.
Common mistake
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