Asked by amanda
a bus engine can operate at very high temperatures . if one of the cylinders has a volume of 1 litre and is initially at 25°C and atmospheric pressure , what is the temperature when the gas in the cylinder is reduced to a volume of 100cubic centrimeters and pressure of 5000kPa
Answers
Answered by
drwls
Assume the number of moles stays the same in the compressed state. (If combustion occurs, this may not quite be true). Then
P*V/T = constant, if T is in degrees K.
(1.013*10^5 Pa)*(1000 cc)/298K = (5.00*10^6 Pa)(100 cc)/T2
Solve for the final temperature T2 in Kelvin. Change to degrees C after that, if they want you to.
T2 = 298*4.94 = 1470 K
P*V/T = constant, if T is in degrees K.
(1.013*10^5 Pa)*(1000 cc)/298K = (5.00*10^6 Pa)(100 cc)/T2
Solve for the final temperature T2 in Kelvin. Change to degrees C after that, if they want you to.
T2 = 298*4.94 = 1470 K
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