Why is Carnot engine not 100% efficient though no loss of kinetic energy is involved? How is it possible to feel warm in one room and cold in another if the air in both is at the same temperature? What is the change in internal energy of a system that takes in 3.40x10^6J of heat...
Why the Carnot engine(Carnot cycle) is not adopted in reality since it is the most efficient engine? Explain how a refrigerator could be used for heating a room in the winter time. Why does an electric fan continue to rotate for some time after the current ...
where we work hard, and get many of the tasks (not just one) to be more efficient, so that our overall process can work faster. If task 5 is the hardest one to speed up and we focus effort first on the remaining tasks, then the results may look like this...
You’ve probably heard that Stirling engines can be very efficient. In theory, Stirling engines can match the maximum theoretical efficiency of the Carnot cycle. In actual fact, some Stirling engines are very efficient¹. Stirling engines can also be clean running and environmentally friendly. So...
Why there is no intensity distribution due to single wave? Why the Carnot engine(Carnot cycle) is not adopted in reality since it is the most efficient engine? Why is kinetic energy \frac{1}{2}mv^{2}? Why current does not stop or speed down when it encounters a resistance? If \vec...
Explain why most materials become less dense as their temperature is increased. Explain the Carnot engine? Why are you more likely to notice electrostatic effects in the winter? Why the Carnot engine(Carnot cycle) is not adopted in reality since it is the most efficient engine?...
How come heat engines are more efficient when run at high temperatures? Why the Carnot engine(Carnot cycle) is not adopted in reality since it is the most efficient engine? Why is friction not useful for car engines? Why don't we consider hydrogen as a meta? Why is there no spi...
Efficiency is one of the important governing factors in engines. Why are 2 stroke engines less efficient but powerful? Why consumption of lubricating oil is more in two-stroke cycle petrol engine than four-stroke cycle petrol engine ? What is the purpose of a ...
State one condition under which mechanical energy is conserved. Why the Carnot engine(Carnot cycle) is not adopted in reality since it is the most efficient engine? Explain the work energy theorem. Why is power-factor correction important in power distribution sys...
Why is work negative potential energy? Why is the air pressure important? Why is it that ultrasound is not included in the electromagnetic spectrum? Why the Carnot engine(Carnot cycle) is not adopted in reality since it is the most efficient engine? Explain why ln(A1) - ln(A2) = ln(A1...