Define the three process of transmission of heat. State the factors on which the amount of heat flowing through a conductor in steady state depends. Hence, define coefficient of thermal conductivity.

What are the factors on which the amount of current flowing through a conductor depends?

state the factors upon which the efficiency of a heat engine depends .

State Hess's Law of constant heat summation Define enthalpy of combustion.

In changing the state of a gas adiabaticaiiy from an equilibrium state A to another equilibrium state B, an amount of work equal to 22.3 J is done on the system. If the gas is taken from state A to B via a process in which the net heat absorbed by the system is 9.35 cal, how much is the net work done by the system in the latter case? (Take 1 cal = 4.19 J)