The amount of heat released is 462.3 kJ
The chemical equation for the reaction of manganese and oxygen to produce manganese (II,III) oxide follows:
We need to calculate the amount heat released for 1 mole of manganese.
To calculate the amount of heat released, we use unitary method:
When 3 moles of manganese is burnt, the amount of heat released is 1387 kJ
So, when 1 mole of manganese is burnt, the amount of heat released will be = (1387 * 1) / 3
= 462.3 kj
Hence, the amount of heat released is 462.3 kJ
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