Heat Engine Efficiency: How Ice Water Affects Performance

Click For Summary
Mixing ice water with hot water can bring the two reservoirs closer to the same temperature, which impacts the mechanical and thermodynamic efficiency of a heat engine. The Carnot efficiency, defined by the temperature difference between the hot and cold reservoirs, will decrease if the temperatures are too similar. This reduction in temperature difference results in lower ideal efficiency, as the Carnot efficiency is maximized when the temperature difference is greatest. Understanding the expression for Carnot efficiency is crucial for analyzing these changes. Overall, the efficiency of a heat engine is significantly influenced by the temperature of its reservoirs.
WazapMe
Messages
2
Reaction score
0
Thread moved from the technical forums to the schoolwork forums
Consider mixing ice water with the hot water and vice versa so that the two reservoirs are closer to the same temperature. What will happen to the mechanical/thermodynamic efficiency and ideal Carnot efficiency of a heat engine?
 
Physics news on Phys.org
Is this a homework question? Are you familiar with the expression for the Carnot efficiency of an engine?
 
Beams of electrons and protons move parallel to each other in the same direction. They ______. a. attract each other. b. repel each other. c. neither attract nor repel. d. the force of attraction or repulsion depends upon the speed of the beams. This is a previous-year-question of CBSE Board 2023. The answer key marks (b) as the right option. I want to know why we are ignoring Coulomb's force?