Distinguish between isothermal and adiabatic processes.
Heat and Thermodynamics
Original Khojo Papers practice question — not from a past board paper.
40%
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The efficiency is 1 − T2/T1 = 1 − 300/500 = 0.4, that is 40%.
From the same topic and chapter, at a similar level.
Distinguish between isothermal and adiabatic processes.
Heat and Thermodynamics
Distinguish between conduction, convection and radiation.
Heat and Thermodynamics
State the first law of thermodynamics and explain its terms.
Heat and Thermodynamics
State the second law of thermodynamics in the Kelvin-Planck and the Clausius forms.
Heat and Thermodynamics
Calculate the work done when one mole of an ideal gas expands isothermally and reversibly from 10 L to 20 L at 300 K. Take R = 8.31 J mol−1 K−1.
Heat and Thermodynamics
Why can the efficiency of a heat engine never be 100%?
Heat and Thermodynamics