P2 P1 Vị V2 V The heat added on the leg PV. PVis A. CyAPV /R В. CPAPV/R C. CyAVP/R D. CPAVP/R
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- 1. The pV-diagram shown illustrates the adiabatic compression of a di- atomic ideal gas from state b to state a. The curved dashed lines represent isotherms. If the gas has an initial pressure of 160 (kPa], what is its final pres- P (Pa) P. sure? A. 519.5 (kPa] T-420 K В. 219.3 (КPa] T- 300 K C. 332.4 (kPa] V (m) D. 464 [kPa) Which of the following energy flow dia- gram correctly describes a heat engine that op- erates by taking one mole of a diatomic ideal gas through the cycle 1-2-3-4-1 as shown in the pV diagram below. 2. Note: 1+2 and 34 (7, = 60OK) diabatie processes (T,- 400K) (7= 300K) 1 (T, - 200K) Volume (m') A. В. c. D. Hot Reservoir Hot Reservoir Hot Reservoir Hot Reservoir 6.24k 6.24 k 8.73 k 8.73 5.82 k 2.08 4.16 2.91 4.16k 2.08 2.91 k 5.82 k Cold Reservoir Cold Reservair Cold Reservoir Cold Reservoir 3. The figure shows a cyclic process where a diatomic ideal gas undergoes an isochoric pro- cess from a to b, an isobaric process from 6 to c, an iso- choric process from c…1. When the pins fall away, the gas is compressed by a constant external pressure to 5 atm. Calculate AS and find the maximum work that could have been extracted from the same change in state had the process been carried out reversibly. The system is in contact with the surroundings at 250K. TE250k O.5 moler ielealget at latm -Perti SatmIf I bring a small object at temperature 200C in thermal contact with a large object at the same temperature, a) thermal energy will flow from the large to the small object because the large object has more internal energy. b) thermal energy will flow from the small to the large object because that will increase entropy. c) thermal energy will not flow.