AQA · OCR A · pV = nRT
Ideal gas equation question generator
Generate A-level questions on gas volumes, molar mass, thermal decomposition and unknown Group 2 nitrates. Clues and worked mark schemes are available when needed.
Exam-style practice
Ideal gas questions
Choose the board, topic and level. The mark scheme uses the same rounded data shown in the question.
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Convert the units before using pV = nRT
With R in J K⁻¹ mol⁻¹, use pressure in Pa, volume in m³ and temperature in K. Questions may give kPa, cm³, dm³, milligrams or degrees Celsius, so check every unit before substituting.
Answers may be entered as an ordinary decimal, calculator notation such as 2.50e−3, or the textbook form 2.50 × 10⁻³. Questions and worked solutions display the textbook form by default.