Please help me with predicting the sign on the thermodynamic quantities listed b
ID: 754952 • Letter: P
Question
Please help me with predicting the sign on the thermodynamic quantities listed below based on the scene representing a physical change in a piston-cylinder assembly. ( first cylinder is pushed to the bottom making everything tight, with 760 torr. second cylinder has room for everything to move. still 760 torr) use these to place for the answers: < 0 > 0 = 0 cannot be determined 1. q sys_____ 2. W sys_____ 3. Change in H sys______ 4. Change in E sys______ 5. Change in E surr______ 6. Change in E univ_______Explanation / Answer
to maintain pressure at 760 torr and have room to move, the gas must be heated to increase preasure with volume. hence q >0..
work is done by system . hence w> 0
change in h is positive as energy is gained by system. hence H>0
change in E sys is >0
E surr<0
change in E univ = 0