DP Chemistry (last assessment 2024)

Question 23M.1.SL.TZ1.14

14.

[Maximum mark: 1]

23M.1.SL.TZ1.14

What is the enthalpy of combustion of propan-1-ol, in kJ mol⁻¹, according to the following calorimetry data?

Mass of water in calorimeter	75 g
Amount of propan-1-ol burned	0.015 mol
Temperature rise	24 °C
Specific heat capacity of water	4.2 J g⁻¹ K⁻¹

A. $\frac{- 0.015 \times 4.2 \times 24}{0.075}$

B. $\frac{- 75 \times 4.2 \times 24}{0.015}$

C. $\frac{- 0.015 \times 4.2 \times 24}{75}$

D. $\frac{- 75 \times 4.2 \times 24}{0.015 \times 1000}$

[1]

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