Which of the following conditions guarantees that the total energy of a system remains constant?
The system should be isolated
An isolated system exchanges neither energy nor matter with its surroundings, so its total energy remains constant. Isolation guarantees this result, although balanced energy transfers can also give zero net energy change in a non-isolated system.
Important Questions from First Law of Thermodynamics
Heat transfer in a cyclic process are +20 kJ, -5 kJ, -10 kJ and +15kJ. Net work done for this cycle will be given by:
An open system is one in which ______.
A system will be in thermodynamic equilibrium only if it is in ____.
A. Thermal equilibrium
B. Mechanical equilibrium
C. Chemical equilibrium
The gas constant (R) is equal to the _____ of two specific heats.
In a reversible adiabatic process the ration \(\left( {\frac{{{T_1}}}{{{T_2}}}} \right)\) is equal to:
