Heat engine Definition and 157 Threads

for the following question: a reversible heat engine, opearting in a cycle, withdraws heat from a high-temperature reservoir(the temperature of which consequentyly decreases), performs work w, and rejects heat into a low-temperature reservoir(the tempertaure of which consequentyly increases)...

a firebox is at 750K and the ambient temp is 300K. The efficiency of a Carnot engine doing 150J of work as it transports energy between these constant temperature baths is 60%. The Carnot engine must take in energy 150/.60=250J from the hot reservoir and must put out 100J of energy by heat...

A heat engine operating between temperatures 500K and 300K is used to lift a 10KG mass vertically at a constant speed of 4 meters per second. Determine the power the engine must supply to life the mass. I'm having trouble finding an equation that could relate temperature and my other...

how can I find efficiency of heat engine operating between two differenct temperatures?

does anyone know how to make a very efficient heat engine using casual laboratory instruments...thanks

when i am calculating the eggiciency of a heat engine i have to convert the celicus to kelvis and used this formula eff = 1-(T cold/T hot)*100 fro example 302C = 593K 610C = 883K eff = 1-593/883 = about 32.8% efficient right ? thanks joe

ok..Im doing this review packet for Physics B...I did all of a Thermo problem except one part... Basically an ideal monoatomic gas first expands in an isobaric process, then the pressure is lowered down isometrically, keeping the volume constant, and finally it is returned to state A...