Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged entropy generation
+1
vote
1
answer
A constant pressure piston/cylinder contains 2 kg of water at 5 MPa and 100°C. Heat is added from a reservoir at 700°C to the water until
asked
Mar 30, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
irreversibility
+3
votes
1
answer
A sealed box was found which stated to have contained an alloy composed of equal parts by weight of two metals A and B.
asked
Mar 27, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
energy equation
compressibility factor
+2
votes
1
answer
Two kilograms of water is contained in a piston/cylinder with a massless piston loaded with a linear spring and the outside
asked
Mar 19, 2019
in
Mathematics
by
kratos
entropy generation
compressibility factor
thermodynamics
manometers
barometers
+3
votes
1
answer
A piece of hot metal should be cooled rapidly (quenched) to 25°C, which requires removal of 1000 kJ from the metal.
asked
Feb 21, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
+3
votes
1
answer
A cylinder fitted with a movable piston contains liquid water in equilibrium with water vapour at 25°C
asked
Feb 17, 2019
in
JEE
by
kratos
entropy generation
jee
thermodynamics
jee mains
chemical equilibrium
+1
vote
1
answer
One kilogram of water at 300°C expands against a piston in a cylinder until it reaches ambient pressure, 100 kPa, at which point
asked
Feb 8, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
availability
+1
vote
1
answer
A piston cylinder has 2.5 kg ammonia at 50 kPa, -20°C. Now it is heated to 50°C at constant pressure through the bottom of the cylinder
asked
Feb 8, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
+1
vote
1
answer
A twenty pound-mass of water in a piston/cylinder with constant pressure is at 1100 F and a volume of 22.6 ft^3. It is now cooled
asked
Feb 4, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
energy equation
+2
votes
1
answer
An insulated cylinder/piston contains R-134a at 1 MPa, 50°C, with a volume of 100 L. The R-134a expands, moving the piston until the pressure
asked
Feb 2, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
+3
votes
1
answer
One pound mass of ammonia (NH3) is contained in a linear spring-loaded piston/cylinder as saturated liquid at 0 F. Heat is added
asked
Jan 23, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
+1
vote
1
answer
A mass and atmosphere loaded piston/cylinder contains 2 kg of water at 5 MPa, 100°C. Heat is added from a reservoir at 700°C
asked
Jan 21, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
irreversibility
+2
votes
1
answer
A piston/cylinder contains 1 kg water at 150 kPa, 20°C. The piston is loaded so pressure is linear in volume. Heat is added from a 600°C
asked
Jan 18, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
+2
votes
1
answer
A vertical cylinder fitted with a piston contains 10 lbm of R-22 at 50 F, Heat is transferred to the system causing the piston to
asked
Jan 18, 2019
in
Mathematics
by
kratos
entropy generation
energy equation
energy
thermodynamics
density
force
+2
votes
1
answer
Amar is engaged in manufacturing of refrigerators. He surveyed the market and found that customers need a refrigerator with a separate provision
asked
Jan 12, 2019
in
Class 12
by
kratos
entropy generation
marketing management
cbse
thermodynamics
entropy of a liquid or a solid
class-12
+1
vote
1
answer
An insulated cylinder/piston contains R-134a at 150 lbf/in.^2, 120 F, with a volume of 3.5 ft^3. The R-134a expands, moving
asked
Jan 7, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
+2
votes
1
answer
A cylinder is fitted with a freely move able piston of area 1.20 × 10^–2 m^2 and negligible mass.
asked
Jan 5, 2019
in
JEE
by
kratos
entropy generation
irodov
class-11
jee
thermodynamics
heat capacity
jee mains
+1
vote
1
answer
A piston/cylinder arrangement is loaded with a linear spring and the outside atmosphere. It contains water at 5 MPa,
asked
Jan 3, 2019
in
Mathematics
by
kratos
entropy generation
thermodynamics
compressibility factor
energy equation
+3
votes
1
answer
Two springs with same spring constant are installed in a massless piston/cylinder with the outside air at 100 kPa.
asked
Jan 2, 2019
in
Mathematics
by
kratos
entropy generation
transient processes
entropy of ideal gases
thermodynamics
manometers
barometers
+3
votes
1
answer
For water at 100 kPa with a quality of 10% find the volume fraction of vapor.
asked
Dec 28, 2018
in
Mathematics
by
kratos
polytropic process
thermodynamics
energy equation
entropy generation
+3
votes
1
answer
A cylinder/piston contains water at 200 kPa, 200°C with a volume of 20 L. The piston is moved slowly, compressing the water to a pressure of 800 kPa.
asked
Dec 27, 2018
in
Mathematics
by
kratos
entropy generation
thermodynamics
To see more, click for the
full list of questions
or
popular tags
.