Chapter 3 The first Law of Thermodynamics 1. a reversible cycle plots as a perfect circle on a T-S diagram with maximum and minimum temperatures 600 k and 300K and a maximum and minimum entropy of 600 k/K and 300k]/. 600K 300K 300kJ/K 600kJ/K
Chapter 3 The first Law of Thermodynamics 1. A reversible cycle plots as a perfect circle on a T-S diagram with maximum and minimum temperatures 600 K and 300K and a maximum and minimum entropy of 600 kJ/K and 300kJ/K
a what is the net work of this cycle? b indicate the path in the cycle along which heat is rejected How do you know? (A sentence or two is required perhaps bolstered by an equation) c)What is the thermodynamic efficiency of this cycle?
a) What is the net work of this cycle? b) Indicate the path in the cycle along which heat is rejected. How do you know?(A sentence or two is required, perhaps bolstered by an equation). c) What is the thermodynamic efficiency of this cycle?
2. The sketch below shows a perfectly insulated container with two compartments separated by a non-adiabatic, frictionless piston Both compartments are at the same pressure (pa= PB)and contain an equal amount of the same gas( ma =mB). Initially compartment a is at a higher temperature than compartment B(TA>TB
2. The sketch below shows a perfectly insulated container with two compartments separated by a non-adiabatic, frictionless piston. Both compartments are at the same pressure (PA= PB) and contain an equal amount of the same gas ( mA =mB ). Initially compartment A is at a higher temperature than compartment B(TA>TB)
A gas properties: cn C, R insulation fric chinless initially ston PA=PB TA>TE
aa Which way, if at all, does the piston move? Indicate by an arrow on a drawing in your exam book(a sentence or two is expected perhaps bolstered by some equations ) a b is the final internal energy Ufinal of the system (both compartments together) lower, equal or higher than initial internal energy Initial of the system? Why? (a sentence or two is expected, perhaps bolstered by some equations
a) Which way, if at all, does the piston move? Indicate by an arrow on a drawing in your exam book (A sentence or two is expected, perhaps bolstered by some equations). b) Is the final internal energy Ufinal of the system (both compartments together) lower, equal or higher than initial internal energy Uinitial of the system? Why? (A sentence or two is expected, perhaps bolstered by some equations.)