1 kg of saturated water vapour at 100oC is condensed into 100% saturated liquid water at 100oC in a constant (atmospheric) pressure heat exchanger that discharges heat to the surroundings at 25oC. Determine the total change of entropy for the process (i.e. Change of entropy of water substance + change of entropy of the surroundings). Enter value in kJ/K (to within 1%, please) How much work could be extracted from the same process if we replace the heat exchanger with an ideal Carnot cycle which is fully reversible (with the same surrounding temperature)? Enter absolute value in kJ. 1% range accepted

Q: Initially, there is 2 kg of liquid water at 80°C in a teapot. It was observed that the water…

A:

Q: E.3) There is a steam system in which the boiler must be fed by using a pump that supplies 0.005…

A:

Q: A large, insulated tank of contains 55 liters of water at a temperature of 20°C. You drop in an…

A: Given: Vtank=55 litersTwater=20°Cmice=30 gmTice=0°C

Q: kg of water vapor are 2.8mpa and with 100 degrees celsius reject of 2180 kj/kg of steam at constant…

A: To  determine enthalpy(kw), specific internal energy(kw),entropy(kj/K).

Q: Steam @ 400 C and 1600 kPa enters a nozzle at a velocity of 28 m/s and leaves as saturated vapor at…

A:

Q: Unit kg of steam is heated reversibly at constant pressure of 2.5MPa, a temperature of 252.3C and…

A: Given: The mass of the steam is m=1 kg, The initial pressure is P1=2.5MPa=2500 kPa, The final…

Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m3, 39 0C and 97…

A: This is the very basic question of thermodynamics and used concept is entropy change of ideal gas…

Q: Q3: 1kg of air can expand reversibly in cylinder behind a piston in such a way that the temperature…

A:

Q: e) To prevent the heat loss from the compressor to the surrounding, the compressor is well…

A: As I have solved previous parts of this question so I am attaching those answers for reference.

Q: A rigid storage tank of 1.5 m3 contains 1 kg of argon at 30◦C. Heat is then transferred to the…

A:

Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m³, 29 °C and 97…

A:

Q: A heat source at 600 K loses 1000 kJ of heat to a sink at 300 K. The Entropy generated in this…

A: Given data as per question Temperature of heat source=600 k heat=1000 kjtemperature of sink =300 kwe…

Q: mass flowrate Ibmis of water at 80 F and 70 pisa is mixed with 1 Ibm/s of saturated vapor water at…

A: The quality of stream at exit is 0.662. Therefore, option (c) is correct answer.

Q: Helium (1.9 kg) is being stored in a rigid tank at 21 deg C. The tank is set outside and the…

A:

Q: 1kg of air can expand reversibly in cylinder behind a piston in such a way that the temperature…

A:

Q: In an experiment, a certain amount of air is heated at constant pressure from 1.7 m3, 27 0C and 97…

A:

Q: The entropy (in kJ/kg/K) of the mixture

A: Given data; Total volume of tank (v)=0.05 m3 Means of liquid (m2)=8kg vf=0.00157 m3/kgvg=0.12736…

Q: Consider the system shown in the figure. When the pins fall away, the gas expands against a constant…

A: Number of moles of the gas, n=10  Initial pressure Pi= 5atm External Pressure Pext = 1 atm T = 300 K…

Q: compressor. Neglecting chang 1.2 kg/min of air is compressed isotnermally from. in potential and…

A:

Q: plunged into a tank containing 4 kg of liquid water initially at 250K. The copper part and water can…

A:

Q: a) A piston-cylinder device contains a working fluid which undergoes an irreversible and…

A:

Q: tank is initially filled with å saturate Heat is transfered from a source to the rises to ( 400…

A:

Q: Water in a closed rigid tank, initially at 689 kPa, 427 oC is cooled to a final state of 138 kPa.…

A:

Q: A vessel contains 10N kg of water at 80 ºC. Determine specific and total internal energy, specific…

A:

Q: Hi, can you please help me with this entropy problem?

A: (a) Entropy generation is 0 .(b) Entropy generation is −2kJ/K .Explanation:Initial condition,Volume…

Q: 1 m3 of carbon monoxide at a pressure of 1 N/mm2 and temperature 300°C, expands 10 times its…

A:

Q: Steam at 5 bar and 450 °C is contained in a rigid vessel of volume 2 m3. The vessel is cooled until…

A:

Q: :A cylinder piston contains 100/ air at 110 kPa. The air is then compressed in a reversible…

A:

Q: Pressure remains constant at 689.5 kPa while the volume changes from 0.567 m3 to 0.283 m3. Find the…

A:

Q: Q5: :- A (0.5 m") rigid tank is initiálly pa with quality (0.4), Heat is transfered from a source to…

A: Volume V1=0.5m3Rigid volumeP1=200 KPa, X1=0.4P2=400 KPa,        Tsruce=350°C=308KStage 1 is we…

Q: 74 kg of water is heated from 61°C to 100 C. What is the change in entropy? The specific heat of…

A: GIVEN DATA MASS OF WATER m=74kg Temprature T1 =61'C , T2=100'C Specific heat of water C=10 cal/kg.K…

Q: Answers were given all i want is the solution pls thank u

A: Apply the heat balance equation. Heat lost by gases is equal to the heat gained by 1 kg saturated…

Q: Work done by a substance in reversible non flow manner during which 32KJ are added, the pressure…

A:

Q: We take a 33 kg chunk of ice (Temp is 0°C) and submerge it in an isolated container. This container…

A:

Q: A 0.20 kg/s of air are compressed isothermally from P,= 100 kPa and V,= 0.15 m3/s to P2= 700 kPa.…

A:

Q: A frictionless piston – cylinder device initially contains 1 kg of water at 2 bar and 150 °C. The…

A: Given data, m = Mass of water = 1 Kg P1 = Initial pressure of the water = 2 bar T1 = Initial…

Q: Two pounds of a certain gas( C, = 0.17 BTU, R = 50.2 ft-lb To-R) at 20 psia -R and 80 deg F are…

A: Given: Cv=0.17 BTUlb-RR=50.2 ft-lblb-RP1=20psiaT1=80°F∆S=-0.021 BTU/R

Q: The entropy of the system can be determined by integration from

A: Entropy is the ratio of heat transfer divided by the absolute temperature

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.