A piston–cylinder device contains 5 kg of saturated water vapor at 3 MPa. Now heat is rejected from the cylinder at constant pressure until the water vapor completely condenses so that the cylinder contains saturated liquid at 3 MPa at the end of the process. The entropy change of the system during this process is (a) 0 kJ/K (b) −3.5 kJ/K (c) −12.5 kJ/K (d) −17.7 kJ/K (e) −19.5 kJ/K

Q: A liquid R-134a bottle has an internal volume of 0.0015 m3. Initially it contains 0.55 kg of R-134a…

A: Given data: Volume of tank, V = 0.0015 m3 Initial mass, m1 = 0.55 kg Temperature inside the…

Q: A 0.5-m³ rigid tank contains nitrogen gas at 600 kPa and 300 R. Now the gas is compressed The work…

A: Given:Initial volume of the tank, Vi=0.5 m3Initial Pressure of the gas, Pi=600 kPaInitial…

Q: An insulated piston-cylinder device contains 0.05 m³ of refrigerant- 134a at 32°C and quality of…

A: Here we will refer to the R134 a table to get the pressure and then calculate the work done

Q: A piston–cylinder device initially contains steam at 200 kPa, 200°C, and 0.4 m3. At this state, a…

A: The initial condition of the steam is given as, The final state is written as, The P-V diagram is…

Q: A certain gas at 288 K and 100 kPa with an initial volume of 0.25 m3 is compressed adiabatically to…

A: Given data: T1=288 KP1=100 kPaV1=0.25 m3P2=700 kPaCp= 1.001 kJ/kg.KCv= 0.715 kJ/kg.K Need to…

Q: Determine the change in the entropy of air,in kJ/kg-K, as it undergoes a change of state from 100…

A: Given : The initial pressure is .The initial temperature is .The final pressure is .The final…

Q: A liquid R-134a bottle has an internal volume of 0.0015 m3 . Initially it contains 0.55 kg of R-134a…

A: →Initial specific volume v1=Vm1=0.00150.55=0.00273 m3/kg   New , From Table A-11 :-    At 26°C ,…

Q: The volume of 1 kg of helium in a piston-cylinder device is initially 5 m³. Now helium is compressed…

A: Given:The mass of the helium, (m)=1 kg.The initial volume of the helium, ()=5 m3The final volume of…

Q: 0.5 kg of air is compressed adiabatically and reversibly in a piston-cylinder device from 100 kPa…

A:

Q: Hydrogen is stored in a tank (volume is 2.0 m) at a pressure of 500kPa and a temperature of 300K. A…

A:

Q: A piston-cylinder device contains steam that undergoes a reversible thermodynamic cycle. Initially,…

A: Write the given data with suitable variables. P1=400 kPaT1=350 °CV1=0.3 m3P2=150 kPa

Q: A piston–cylinder device contains 0.75 kg of nitrogen gas at 140 kPa and 37°C. The gas is now…

A: Given: The mass of the nitrogen in the piston-cylinder device is m=0.75 kg The initial pressure of…

Q: An insulated piston–cylinder device contains 0.05 m3 of saturated refrigerant- 134a vapor at 0.8-MPa…

A: Given data: The refrigerant inside the cylinder is R-134a The volume present inside the cylinder is…

Q: Consider a well-insulated piston cylinder device and it contains 3 L of saturated liquid refrigerant…

A: Data given in this problem :⇒Volume of liquid (V)= 3 litre = 3×10-3 m3 ⇒ Density of R 134-a =ρ=…

Q: A 100-lbm block of a solid material whose specific heat is 0.5 Btu/lbm·R is at 80F. It is heated…

A: Given data: *The mass of the block is mb=100 lbm. *The specific heat capacity of block is cb=0.5…

Q: A frictionless piston–cylinder device contains 16 lbm of superheated water vapor at 40 psia and…

A:

Q: A piston-cylinder device initially contains 0.65 m3 of saturated water vapor at 225 kPa. At this…

A: The P-V diagram of the process Given,

Q: Seven kilograms of air is contained in a constant volume tank at 327 degrees C and 120 kPa, then is…

A: Calculate the entropy change of the air.

Q: 0.15 lbm of neon gas (in a piston cylinder device) at an initial pressure and temperature of 90 psia…

A:

Q: (1)Refrigerant R-134a that has an initial volume of 1220 L at 320 kPa with a quality of 91 percent…

A: Given:V1=1220 L    =1220*10-3 m3P1=320 KPax1=0.9P2=500 KPaT2=150°C

Q: A piston–cylinder device contains 25 g of saturated water vapor that is maintained at a constant…

A: Given data: Refer to the table “saturated pressure table” to obtain the enthalpy. Calculate the…

Q: steam initially at 200 kPa and 3000C. The steam is now cooled while being stirred until its volume…

A: First Step is To Write The Given Data. And We need To Take Some data from Steam table So Please…

Q: Consider a closed, isolated system that consists of two substances 1 and 2 that both have constant…

A:

Q: Determine the change in the entropy of air, in kJ/kg-K, as it undergoes a change of state from 100…

A: The initial pressure is .The initial temperature is .The final pressure is .The final temperature is…

Q: A 0.40-m3 insulated piston–cylinder device initially contains 1.3 kg of air at 30°C. At this state,…

A: Given: The initial volume of the air is V1=0.40 m3. The final volume of the air is V2=V1+50%of…

Q: A piston–cylinder device initially contains 3 lbm of liquid water at 20 psia and 708F. The water is…

A: For state 1 we have, From the steam table, it is clear that this is a compressed liquid.

Q: An 22 m3 rigid tank initially contains Argon gas at 152 kPa and 28 oC. The tank is connected by a…

A: (a) To find: The final temperature of the tank in Kelvin. Given: The initial volume of the tank is…

Q: heating system has a volume of 20 Land is filled with superheated water vapor at 200 kPa and 150°C.…

A: Volume of water = 20 LWater vapour pressure P1 = 200kPaWater vapour temperature T1 = 150o CSteam…

Q: (1)Refrigerant R-134a that has an initial volume of 860 L at 30°C with a quality of 70 percent is…

A: Given:V=890 L =890*10-3 m3T1=30°Cx1=0.7P2=900 KPaT2=80°C

Q: An insulated piston–cylinder device initially contains 300 L of air at 120 kPa and 17C. Air is now…

A: given data as per question Initial pressure =120Kpa Initial temperature =170 c Heater resistance…

Q: One kg of air at 200 kPa and 127°C is contained in a piston–cylinder device. Air is now allowed to…

A: Given: The mass of the air is m=1 kg. The temperature of the air is T=127°C. The initial pressure of…

Q: A 15-ft3 steel container that has a mass of 75 lbm when empty is filled with liquid water.…

A: To find-: The total entropy generated during the process ∆S. Given-: The volume of container is V=15…

Q: A well insulated 70 m³ tank initially contains 23000 kg of water distributed between liquid and…

A: Write down the given values with suitable variables.

Q: A mass of 25 lbm of helium undergoes a process from an initial state of 50 ft3 /lbm and 60°F to a…

A: Given, mass of helium ( m ) = 25 lbm T1 = 60°F = 520°R T2 = 240°F = 700°R Specific volume (v1) = 50…

Q: A liquid R-134a bottle has an internal volume of 0.001 m3 . initially it contains 0.4 kg of R-134a…

A: Volume of tank, V = 0.001 m3Initial mass, m1 = 0.4 kgTemperature inside the container, T1 =…

Q: A rigid tank of 0.22-m'volume initially contains saturated vapor refrigerant-134a at 1.2 MPa. The…

A:

Q: A rigid, well-insulated tank is initially empty. The tank is kept connected by means of a valve to a…

A:

Q: A piston-cylinder device initially contains steam at 200 kPa, 200°C, and 0.4 m³. At this state, a…

A:

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.