Physics

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is is The efficiency of an ideal heat engine working between the freezing point and boiling point of water August 31, 2020 Category: Chapter 18 - Thermodynamics , NEET Last 32 Years Solved 1988 - 2019 Physics and [...]

A Carnot engine, having an efficiency of 1/10 as heat engine, is used as a refrigerator. If the work done on the system is 10J, the amount of energy absorbed from the reservoir at lower temperature is A Carnot engine having an efficiency of 1/10 as heat engine is used as a refrigerator. If the [...]

One mole of an ideal gas goes from an initial state A to final state B via two processes : It first undergoes isothermal expansion from volume V to 3V and then its volume is reduced from 3V to V at constant pressure. The correct P-V diagram representing the two processes is: change in internal [...]

A thermodynamic system is taken through the cycle ABCD as shown in the figure. Heat rejected by the gas during the cycle is A thermodynamic system is taken through the cycle ABCD as shown in the figure. Heat rejected by the gas during the cycle is August 31, 2020 Category: Chapter 18 - Thermodynamics , [...]

In the given (V-T) diagram, what is the relation between pressures P1​ and P2​? In the given (V-T) diagram what is the relation between pressures P1​ and P2​? August 31, 2020 Category: Chapter 18 - Thermodynamics , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,

A gas is taken through the cycle A → B → C → A, as shown. What is the net work done by the gas? A gas is taken through the cycle A → B → C → A as shown. What is the net work done by the gas? August 31, 2020 Category: Chapter [...]

A thermodynamics system undergoes cyclic process ABCDA as shown in Fig. The work done by the system in the cycle is A thermodynamics system undergoes cyclic process ABCDA as shown in Fig. The work done by the system in the cycle is August 31, 2020 Category: Chapter 18 - Thermodynamics , NEET Last 32 Years [...]

One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in the figure, The change in internal energy of the gas during the transition is: One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown [...]

Figure below shows two paths that may be taken by a gas to go from a state A to state C. In process AB, 400 J of heat is added to the system and in process BC, 100 J of heat is added to the system. The heat absorbed by the system in the process [...]

If Q, E and W denote respectively the heat added, change in internal energy and the work done in a closed cycle process, then. change in internal energy and the work done in a closed cycle process E and W denote respectively the heat added If Q then August 31, 2020 Category: Chapter 18 - [...]