Question

The change in the state of a substance is generally caused by a rise or fall in the ___________ of the substance

Answer 1

Answer:

The carbon compound found in petrol which on incomplete combustion releases carbon monoxide is

Answer 2

The temperature of any substance remain constant during the change of state because the heat energy supplied is used up in changing the state of matter and also this heat is used for breaking of several bonds or attractive forces.
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