Recent content by cathy88

Thanks for the reply so, for saturated water at T=120 degress the Psat=0.1985MPa and v=0.001060m^3 given the mass of the saturated liquid is 0.50kg and the total volume of the piston is 0.10m3. So the air is taking up 0.09894m3 of volume. How can I link it to how much mass it is?Do I have to...

Homework Statement Problem shown in attach picture A cylinder of total internal volume 0.10 m3 has a frictionless internal piston (of negligible mass and thickness) which separates 0.50 kg of water below the piston from air above it. Initially the water exists as saturated liquid at...

Homework Statement Problem shown in attach picture A cylinder of total internal volume 0.10 m3 has a frictionless internal piston (of negligible mass and thickness) which separates 0.50 kg of water below the piston from air above it. Initially the water exists as saturated liquid at...

ahh, I get it, so I do 5kw/.35= q in? another question how could i calculate heat reject. It is process 3-4 in a carnot cycle which is isothermal heat rejection. If I apply First Law it wud be typically that q3-4 or qout= RT3*ln(v4/v3) but I can not get this volume , or should I be using...

How do I calculated the rate heat supplied? I thought the 5KW output is not the total Work Cycle?

n carnot = Wcycle / Qin this would help me solve rate for power supply into system, given i know thermal efficency as .35 / 35% but I do not know the W cycle, I am only given the Work output which is 5KW. No volume is given so I can't go through the first law and calculate the total work for...

Homework Statement An ideal Carnot engine produces a power output of 5kW at a thermal efficiency of 35% while rejecting heat reversibly to a reservoir at 30degrees. It achieves this output while executing 10 cycles per second. a) What temperature is the engine receiving its heat supply...