1) A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each c
ID: 2273700 • Letter: 1
Question
1) A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage)
2) An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266 and 115
A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage) An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266 and 115degreeC. It absorbs 4250 cal per cycle at 266degreeC. What is its efficiency as a percentage? A gas is at an initial pressure of 1.24x104 Pa and occupies a volume of 0.28 m3. The (slow) addition of 23,570 cal of heat to the system causes it to expand in an isobaric manner to a volume of 0.47 m3. How much work (in joules) is done by the system? A heat engine operates on the cycle shown below. Approximately, how much work (in joules) does the engine do per cycle? NOTE: For this question, use 1.01·105 Pa as the value for 1 atm. An ideal monatomic gas goes from p1 = 180 atm and V1 = 45 m3 to p2 and V2 through an adiabatic process. If p2 = 60 atm, what is V2?Explanation / Answer
4) My suggestion is to convert .01 atm to Pa FIRST.
as in .01 atm = 1013.25 Pa <-- that is now your height
there is no need to convert the Volume so W = 1013.25 * 6
Answer will be in Joules
Because of the flow of the engine.
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