Question 7 – Gas pressure and temperature - Questions

A student makes the following hypothesis:

"When the pressure of a fixed mass of gas is decreased, the volume of the gas increases."

They set up the apparatus shown in the diagram below. The nozzle of the syringe is sealed, trapping a sample of air. The student has already measured the cross-sectional area of the plunger.

$A syringe of cross-sectional area A\, is clamped vertically with its sealed nozzle pointing upwards. A mass hanger is attached to the bottom of the plunger handle, allowing slotted masses to be hung. This pulls the plunger downwards, increasing the internal volume and decreasing the pressure of the trapped air inside the syringe. The syringe has volume markings printed on its side.$

Gas pressure and temperature Questions

Practise Edexcel GCSE Physics Gas pressure and temperature with exam-style questions for Foundation and Higher tier. 78 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

A student makes the following hypothesis:

"When the pressure of a fixed mass of gas is decreased, the volume of the gas increases."

They set up the apparatus shown in the diagram below. The nozzle of the syringe is sealed, trapping a sample of air. The student has already measured the cross-sectional area of the plunger.