A Level Chemistry 9701/12/O/N/20 Q33

Question

The diagram illustrates the enthalpy changes of a set of reactions.
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Which statements are correct?
1 The enthalpy change for the transformation U → R is +42kJmol–1.
2 The enthalpy change for the transformation T → S is endothermic.
3 The enthalpy change for the transformation R → T is – 33kJ mol–1.

 

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    2021-08-15T21:01:55+08:00

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