How many Equation of state questions are there for 9702?

This page collects 5 recent Cambridge Physics (9702) past-paper questions tagged to Equation of state. Each links straight to instant marking against the official 9702 scheme.

How are Equation of state answers marked?

Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Equation of state first?

Start with the free Physics lesson on Equation of state, then come back and drill past-paper questions under timed conditions.

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9702 · topic questions

Equation of state

Physics5 questions

5 past-paper questions on Equation of state

9702/41 · October/November 20244 marks
Complete Table 3.1 by giving expressions, in terms of some or all of N, m, T, V and the constants in (a)(ii), for the quantities…
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9702/42 · October/November 20243 marks
State three conclusions about the gases and their samples that may be drawn from Fig. 4.1 and Fig. 4.2. The conclusions may be…
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9702/42 · May/June 20243 marks
Two cylinders X and Y each contain a sample of an ideal gas. The samples are in thermal equilibrium with each other. X has a…
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9702/41 · May/June 20242 marks
A sample of 0.26 m³ of an ideal gas is at pressure 2.0 × 10⁵ Pa and temperature 290 K. Determine: the number N of molecules of…
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9702/41 · May/June 20242 marks
The volume V of the gas in (b) is now varied, keeping its pressure constant. On Fig. 3.1, sketch the variation with V of the…
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Question stems are shortened previews. Open a question to attempt the full version and have it marked.

Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Equation of state (9702) past-paper questions — marked instantly

These are real Cambridge Physics past-paper questions on Equation of state. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9702 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Equation of state 9702 grade boundaries

Frequently asked questions

How many Equation of state questions are there for 9702?: This page collects 5 recent Cambridge Physics (9702) past-paper questions tagged to Equation of state. Each links straight to instant marking against the official 9702 scheme.
How are Equation of state answers marked?: Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Equation of state first?: Start with the free Physics lesson on Equation of state, then come back and drill past-paper questions under timed conditions.