MARKING GUIDE: Unit 3E1 – Enthalpy of Combustion

1.	C
2.	A
3.	D
4.	D
5.	A
6.	A
7.	A
8.	A
9.	C
10.	C

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.
a)
	112 kJ
b)

c)
i)	-1430 kj mol^-1
ii)	Any value in range -2675 kj mol^-1 to -2688 kj mol^-1 [inclusive]
ii)	Evaporation of unburnt fuel

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