Advertisements
Advertisements
प्रश्न
Define heat engine.
Advertisements
उत्तर
Heat engine is a device which takes heat as input and converts this heat into work by undergoing a cyclic process.
APPEARS IN
संबंधित प्रश्न
Answer in brief.
What sets the limits on the efficiency of a heat engine?
The figure shows the V-T diagram for one cycle of a hypothetical heat engine which uses the ideal gas. Draw the p-V diagram diagram of the system.

State Kelvin-Planck's statement of the second law of thermodynamics.
What are the processes involves in a Carnot engine?
Explain in detail the Carnot heat engine.
Explain the second law of thermodynamics in terms of entropy.
A Carnot engine whose efficiency is 45% takes heat from a source maintained at a temperature of 327°C. To have an engine of efficiency of 60% what must be the intake temperature for the same exhaust (sink) temperature?
10 One mole of a van der Waals' gas obeying the equation `("P" + "a"/"V"^2)`(V - b) = RT undergoes the quasi-static cyclic process which is shown in the P-V diagram. The net heat absorbed by the gas in this process is ______
Let η1 is the efficiency of an engine at T1 = 447°C and T2 = 147°C while η2, is the efficiency at T1 = 947°C and T2 = 47°C. The ratio `eta_1/eta_2` will be ______.
The thermal efficiency of a heat engine is 25%. If in one cycle the heat absorbed from the hot reservoir is 50000 J, what is the heat rejected to the cold reservoir in one cycle?
