Q.

When one mole of manganese is burnt completely to form Mn3O4(s) at standard state conditions, the amount of heat liberated is

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answer is 2.

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Detailed Solution

3Mns+2O2g→Mn3O4s,    ΔH=-1388KJ/moleFor 3 mole Mn heat liberated is 1388KJ1 mole Mn -------?Heat liberated = 462.67KJ
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When one mole of manganese is burnt completely to form Mn3O4(s) at standard state conditions, the amount of heat liberated is