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Aliun [14]
2 years ago
13

A)

Chemistry
1 answer:
jeka57 [31]2 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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