Maximum of 3 people per team.

The capacity of chambers should be 2.5 litres - water, 0.4 litres - exothermic, 0.7 litres - endothermic.

Quantity of water used should be 750 ml.

Weight of the piston used in the heat engine must be 1.5 kg.

Maximum allowable pouring time of the chemicals is 30 seconds.

Participants must use only the chemicals provided by Pragyan, and they are not allowed to bring/use any chemicals of their own.

During the process, there should be no direct addition of chemicals.

Participants are not allowed to interfere with the demonstrations of the other groups. Doing so will result in immediate disqualification.

Participants are only given one try for their demonstration of the heat engine. In the case of malfunction or any mistakes, the judges will review the situation and may/may not give the participants another chance.

The judges’ decision will be final.