Correct Answer: It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
3. The amount of heat obtained by the complete combustion of 1 kg of a fuel when the products of its combustion are cooled down to the temperature of supplied air is called __________ calorific value offuel.
4. Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, ? = cp/cv, known as adiabatic index, and R = Gas constant)
8. The property of the system, whose value for the entire system is equal to the sum of their values for the individual parts of the system is called extensive property
