Exploring the second law
using the kelvin–planck statement of the second law of thermodynamics, demonstrate the following corollaries:
(a) the coefficient of performance of an irreversible refrigeration cycle is always less than the coefficient of performance of a reversible refrigeration cycle when both exchange energy by heat transfer with the same two reservoirs.
(b) all reversible refrigeration cycles operating between the same two reservoirs have the same coefficient of performance.
(c) the coefficient of performance of an irreversible heat pump cycle is always less than the coefficient of performance of a reversible heat pump cycle when both exchange energy by heat transfer with the same two reservoirs.
(d) all reversible heat pump cycles operating between the same two reservoirs have the same coefficient of performance.
Answers: 2
Chemistry, 22.06.2019 11:00, 21villalobosjabez
Which type of fossil does this image depict?
Answers: 1
Chemistry, 23.06.2019 08:00, codybrocs9624
Can anyone answer these questions? ? i need it before 1: 00pm today
Answers: 2
Chemistry, 23.06.2019 08:00, yddlex
Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.
Answers: 3
Chemistry, 23.06.2019 11:30, nadine6085859r
Which of the following is a property of nonmetals? a. nonmetals are ductile. b. nonmetals have a shiny luster. c. nonmetals have high density. d. nonmetals are nonconductors.
Answers: 1
Exploring the second law
using the kelvin–planck statement of the second law of thermody...
using the kelvin–planck statement of the second law of thermody...
Mathematics, 06.05.2020 06:33
Mathematics, 06.05.2020 06:33
Mathematics, 06.05.2020 06:33
Mathematics, 06.05.2020 06:33
Mathematics, 06.05.2020 06:33