An ideal gas is in contact with a heat reservoir so that it remains at a constant temperature of 300 K. The gas is compressed from a volume of 29 L to a volume of 17 L. During the process the mechanical device pushing the piston to compress the gas is found to expend 5 kJ of energy. What is the magnitude of the heat flow between the heat reservoir and the gas and in what direction does the heat flow occur?
2007-07-29 20:01:00 · 3 answers · asked by Sandesh R 1 in Science & Mathematics ➔ Physics
Because of the thermal sink,
P2V2 = P1V1, so ∆PV = 0.
Therefore all the work done (5kJ) in compressing the gas passes from the gas to the heat sink in the form of heat.
2007-07-29 20:29:28 · answer #1 · answered by Helmut 7 · 0⤊ 0⤋
It is not hard once you realise that it is a question about Boyle's law.
2007-07-29 20:12:47 · answer #2 · answered by Anonymous · 0⤊ 0⤋
actually this looks more like thermodynamics than physics!
2007-08-01 07:41:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋