NEET Physics Heat Engines MCQ Question
Consider a heat engine cycle depicted in a diagram consisting of the following steps: 1) Isothermal expansion where heat is absorbed from a reservoir, 2) Adiabatic expansion where no heat exchange occurs, 3) Isothermal compression where heat is released to a reservoir, and 4) Adiabatic compression where no heat exchange occurs. Which of the following best represents the role of heat exchange in this cycle?
Heat is only absorbed during the isothermal expansion and released during the isothermal compression.
Heat is absorbed during both isothermal and adiabatic expansions.
Heat is absorbed during the adiabatic expansion and released during the adiabatic compression.
Heat is absorbed during the adiabatic compression and released during the isothermal expansion.
Correct Answer
Detailed Explanation
In a heat engine cycle, heat is absorbed from a reservoir during the isothermal expansion and released to a reservoir during the isothermal compression, as described by the thermodynamic principles outlined in the NCERT context.
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