4) A refrigerator may be regarded as the inverse of a steam engine, in that work...

Question

Question

4) A refrigerator may be regarded as the inverse of a steam engine, in that work is performed in order to remove heat from a b) Can a temperature of absolute zero be achieved by repeating the cycle with temperature lowered by the maximum efficiency e

engineering Chemical-Engineering

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

soluhon Given dala inverse d Yelvigeva tor may be regardead as the of a skeam engine Yefrigeraor The effiaency of a Agabsorbe

Add a comment

Answer 2

Similar Homework Help Questions

4) A refrigerator may be regarded as the inverse of a steam engine, in that work...

4) A refrigerator may be regarded as the inverse of a steam engine, in that work is performed in order to remove heat from a system. It may be regarded as a steam engine run in reverse (i.e. the first step is a reversible adiabatic expansion from Th to Tc.) Heat is absorbed by the gas at the lower temperature in the succeeding isothermal expansion. The efficiency of a refrigerator is: Tods Tc E-49absorbed - AWinput Tyds – Tods TH...
8. A refrigerator may be regarded as the inverse of a steam engine, in that work...

8. A refrigerator may be regarded as the inverse of a steam engine, in that work is performed in order to remove heat from a system. It may be regarded as a steam engine run in reverse (i.e. the first step is a reversible adiabatic expansion from Th to Tc.) Heat is removed from the gas at the lower temperature in the succeeding isothermal expansion. The efficiency of a refrigerator is: Er = Aqoutput/AWinput Assuming a refrigerator can be built...
8. A refrigerator may be regarded as the inverse of a steam engine, in that work is performed in order to remove hea...

8. A refrigerator may be regarded as the inverse of a steam engine, in that work is performed in order to remove heat from a system. It may be regarded as a steam engine run in reverse (i.e. the first step is a reversible adiabatic expansion from Th to Tc.) Heat is removed from the gas at the lower temperature in the succeeding isothermal expansion. The efficiency of a refrigerator is: Er = Aqoutput /Awinput Assuming a refrigerator can be...

4) A refrigerator may be regarded as the inverse of a steam engine, in that work...

4) A refrigerator may be regarded as the inverse of a steam engine, in that work is performed in order to remove heat from a system. It may be regarded as a steam engine run in reverse (i.e. the first step is a reversible adiabatic expansion from Th to Tc.) Heat is absorbed by the gas at the lower temperature in the succeeding isothermal expansion. The efficiency of a refrigerator is: _Aqabsorbed TcdS To Tyds – Tcds TH - Tc...
3. (20 pts) In the Carnot engine (refer to the figure in question 2), an ideal...

3. (20 pts) In the Carnot engine (refer to the figure in question 2), an ideal gas undergoes a cycle of isothermal expansion (A → B), adiabatic expansion (B → C), isothermal compression (C → D), and adiabatic compression (D → A). All processes are assumed to be reversible. The volumes at the points are given that 2VA=VB and VC=2VD. Th is 650 °C and Tc is 30 °C. (1) Calculate the amount of heat added to one mole gas...
11. A reversible heat engine uses a three-step cycle consisting of an isothermal expansion at temperature...

11. A reversible heat engine uses a three-step cycle consisting of an isothermal expansion at temperature Ti, a constant volume cooling to temperature T2, and adiabatic compression back to the initial state. (a) Sketch the P-V diagram (b) If 1 mole of a van der Waals gas is used the working material, the efficiency of this engine is defined to be E = Suppose that the heat capacity of gas is independent of temperature. Show that the efficiency of the...

A Carnot engine operates us ing 1.0 mol e of monoatomic ideal gas as a working...

A Carnot engine operates us ing 1.0 mol e of monoatomic ideal gas as a working s ubstance. In t he first step, the gas is place d in thermal contact with a heat reservoir and expands isothermally to 3 .0 times its initial volume. (a) If the internal energy o f the gas after this step is 6.25 k J , calculate the temperature of the heat reservoir ( T h ) . (b) C alculate the heat absorbed...
One mole of an ideal mono-atomic gas is in a state A characterized by a temperature...

One mole of an ideal mono-atomic gas is in a state A characterized by a temperature TA. The gas is then subjected to a succession of three quasi-static reversible processes: An isothermal expansion A → B, which increases the volume by a factor y. The expansion factor is therefore y = VB / VA> 1. An adiabatic compression B → C which increases the pressure by a factor w. The compression factor is w = pC / pB> 1. A...
earning Goal: To understand that a heat engine run backward is a heat pump that can be used as a refrigerator....

earning Goal: To understand that a heat engine run backward is a heat pump that can be used as a refrigerator. By now you should be familiar with heat engines--devices, theoretical or actual, designed to convert heat into work. You should understand the following: Heat engines must be cyclical; that is, they must return to their original state some time after having absorbed some heat and done some work). Heat engines cannot convert heat into work without generating some waste...

T9D.3 In this problem, you will calculate the efficiency of a Carnot engine without referring to...

T9D.3 In this problem, you will calculate the efficiency of a Carnot engine without referring to entropy (a) Consider the isothermal expansion in step 1 of the Car- not cycle. Because the temperature of the gas remains constant, work energy that flows out of the gas as it expands must be balanced by the heat energy flowing into the gas. Use this and equation T7.10 for the work done in an isothermal expansion to show that (T9.16) (b) In a...

4) A refrigerator may be regarded as the inverse of a steam engine, in that work...

Homework Answers