Thanks for your input. Actually what I was trying to do is find out the efficiency of my AC by measuring the current, voltage and calculating the amount of work done by the compressor. With so many variables involved I don't think I will come up with an accurate number. Andrew..if the work done...
The compression will happen in a fraction of the second so even though the system is not totally isolated from the environment the heat transfer can be ignored and the process can be considered adiabatic. Q_Goest can you explain the isentropic proces please ?
Actually what I'm trying to do is...
If I compress air in 1/2 of the original volume the ideal gas equation predicts either
1-pressure remains the same temperature doubles
2-temperature remains the same pressure doubles
My questions is..what would I really observe during the compression..a increase in temp, increase in pressure...