Which limitation arises when heat engines operate isothermally?

💡 Explanation

Second Law constraints mean isothermal engines lack the temperature difference necessary for continuous 'heat to work' via the Carnot efficiency framework, because 'heat flows' drive output, therefore, efficiency reaches a limit, rather than other impossible effects.

• Which risk increases when a GPS satellite's velocity increases substantially?
• Which outcome occurs when a hydrogenation catalyst degrades, altering reaction kinetics constants?
• Which outcome increases when inertial confinement fusion pulse duration exceeds optimal timeframe?
• Which risk significantly increases when the controlled cooling in crystalline silicon boule production fails during Czochralski pulling?
• Which condition sharply decreases photocurrent when sodium iodide perovskite solar cells are deployed?
• Which outcome impairs the Carnot cycle when internal friction increases?