Question:medium

For an ideal gas undergoing an isothermal change, there is:

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For an ideal gas: Isothermal = Constant Temperature = Zero Internal Energy Change ($\Delta U = 0$). According to the first law, this simplifies the energy balance to $\Delta Q = \Delta W$, meaning any heat absorbed must be completely converted into work performed by the system.

Updated On: May 16, 2026

a decrease in Internal energy of the system and heat released by the system is equal to the work done by the system
an increase in Internal energy of the system and heat absorbed by the system is greater than the work done on the system
no change in Internal energy of the system and heat released by the system is equal to the work done by the system
no change in Internal energy of the system and heat absorbed by the system is equal to the work done by the system

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