DP Chemistry (first assessment 2025)

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Question 23M.1A.SL.TZ2.14

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ2.14
Level SL Paper 1A Time zone TZ2
Command term Question number 14 Adapted from N/A
14.
[Maximum mark: 1]
23M.1A.SL.TZ2.14

The enthalpy of formation of ammonia gas is −46 kJ mol−1.

N2 (g) + 3H2 (g) → 2NH3 (g)

What is the energy released, in kJ, in the reaction?


A.  23
B.  46
C.  69
D.  92

[1]

Markscheme

D