One kg of graphite is burnt in a closed vessel. The same amount of the same sample is burnt in an open vessel. Will the heat evolved in the two cases be same? If not, in which case it would be greater?

One kg of graphite is burnt in a closed vessel. The same amount of the

1.	One kg of graphite is burnt in a closed vessel. The same amount of the same sample is burnt in an open vessel. Will the heat evolved in the two cases be same? If not, in which case it would be greater?
Answer» heat in the TWO CASES will be differentThe heat in the CLOSED vessel will be more as the will not ABLE to ESCAPED in the atmosphere