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 electrical behaviour occurs when exceeding the avalanche photodiode's depletion region bias?
• Which mechanism destabilizes an airfoil when airflow reaches Reynolds number threshold?
• Which outcome is observed when light traverses near large gravitational fields?
• Which risk increases when a photovoltaic cell experiences overheating sufficient to induce lattice expansion?
• Which outcome arises when a molecule vibrates at a frequency matching its resonant molecular frequency?
• Which outcome occurs when platinum gauze catalyzes ammonia oxidation?