1 = q w= q v 2 v 1 Pdv= q p P v 2 v 1 dV = q p P V 2 V 1 q p= U 2 PV 2 U 1 PV 1 = U 2 P 2V 2 U 1 P 1V 1 = H 2 H 1 H= q p Also, dH p = dq p Foraconstantvolumeprocess,du =dq dw,but = 0 because PdV Therefore, dU v = dq v Heatcapacityisdefinedas C process dq process dT Forconstantpressure, C P dq P dT = dH P dT P = H T P ....
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This is a thermodynamic cycle provided it is carried out reversibly ie kept very close to equilibrium , and then the internal energy is the same at the beginning and the end of the cycle In that case, dU= 0, and W total= Q H Q L, so we can also write the e ciency as = 1 Q L Q H...
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Thermodynamics THERMODYNAMICS 3 PROPERTIES OF PURE SUBSTANCES If we continue to add heat to water, more and more vapor will be created, while the temperature and the pressure remain constant T = 100 176 C and P = 1 atm...
Thermodynamics MCQ Question 5 Download Solution PDF A Carnot engine works between the temperature 227 176 C and 127 176 C If the work output of the engine is 10 4 J, then the amount of heat rejected to the sink will be 1 10 4 J 2 10 4 J 4 10 4 J...
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