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3 years ago

A)

Chemistry

1 answer:

jeka57 [31]3 years ago

4 0

Answer:

Explanation:

a )

From the graph given , energy of reactant = 0

b )

energy of product = -15 kJ

c )

ΔH = energy of product - energy of reactant

= -15 - 0 = - 15 kJ

ΔH is negative so reaction is exothermic .

d ) Activation energy = 25 - 0 = 25 kJ .

e ) Energy released = 15 kJ .

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