How many Enthalpy change, ΔH questions are there for 9701?

This page collects 3 recent Cambridge Chemistry (9701) past-paper questions tagged to Enthalpy change, ΔH. Each links straight to instant marking against the official 9701 scheme.

How are Enthalpy change, ΔH answers marked?

Type or photograph your working and MarkScheme scores it against the real 9701 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Enthalpy change, ΔH first?

Start with the free Chemistry lesson on Enthalpy change, ΔH, then come back and drill past-paper questions under timed conditions.

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9701 · topic questions

Enthalpy change, ΔH

Chemistry3 questions

3 past-paper questions on Enthalpy change, ΔH

9701/23 · May/June 20242 marks
Write an equation to show the reaction for the standard enthalpy change of formation of H2O. Include state symbols.
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9701/23 · May/June 20242 marks
Water is one of the products in the reaction of B2O3 and NH3, as shown in reaction 2. reaction 2 B2O3 + 2NH3 → 2BN + 3H2O Table…
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9701/22 · May/June 20252 marks
Hydrocarbon Y contains two C=C groups. There are no other functional groups present. Y reacts with an excess of H2(g) to produce…
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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.

Enthalpy change, ΔH (9701) past-paper questions — marked instantly

These are real Cambridge Chemistry past-paper questions on Enthalpy change, ΔH. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9701 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Enthalpy change, ΔH 9701 grade boundaries

Frequently asked questions

How many Enthalpy change, ΔH questions are there for 9701?: This page collects 3 recent Cambridge Chemistry (9701) past-paper questions tagged to Enthalpy change, ΔH. Each links straight to instant marking against the official 9701 scheme.
How are Enthalpy change, ΔH answers marked?: Type or photograph your working and MarkScheme scores it against the real 9701 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Enthalpy change, ΔH first?: Start with the free Chemistry lesson on Enthalpy change, ΔH, then come back and drill past-paper questions under timed conditions.