The equation for the combustion of butane gas is given below.
7.1 Define the term activation energy.(2)
7.2 Is the combustion reaction of butane exothermic or endothermic? Give a
reason for the answer.(2)
7.3 Draw a sketch graph of potential energy versus course of reaction for the
reaction above.
Clearly indicate the following on the graph:
- Activation energy
- Heat of reaction (∆H)
- Reactants and products (3)
7.4 Determine the empirical formula of butane gas if it consists of 82,76% carbon
and 17,24% hydrogen.(4)
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