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Recent questions tagged polytropic process
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Assume a balloon material with a constant surface tension of * = 2 N/m. What is the work required to stretch a spherical balloon
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Mar 25, 2019
in
Mathematics
by
kratos
polytropic process
thermodynamics
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1
answer
10 kg of water in a piston cylinder arrangement exists as saturated liquid/vapor at 100 kPa, with a quality of 50%.
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Mar 19, 2019
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Mathematics
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kratos
polytropic process
thermodynamics
energy equation
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A coil has resistance of 18Ω when its mean temperature is 200°C and of 20Ω when its mean temperature is 500°C.
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Mar 16, 2019
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JEE
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kratos
polytropic process
current laws
electric current
jee
thermodynamics
jee mains
current electricity
ohms law
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1
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A balloon behaves so the pressure is P = C2 V^1/3, C2 = 100 kPa/m. The balloon is blown up with air from a starting volume of 1 m^3
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Mar 15, 2019
in
Mathematics
by
kratos
polytropic process
thermodynamics
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A film of ethanol at 20°C has a surface tension of 22.3 mN/m and is maintained on a wire frame as .
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Mar 11, 2019
in
Mathematics
by
kratos
polytropic process
thermodynamics
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1
answer
A piston/cylinder contains water at 500°C, 3 MPa. It is cooled in a polytropic process to 200°C, 1 MPa. Find the polytropic exponent
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Mar 11, 2019
in
Mathematics
by
kratos
polytropic process
thermodynamics
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1
answer
A water-filled reactor with volume of 50 ft^3 is at 2000 lbf/in.^2, 560 F and placed inside a containment room,The room
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Mar 2, 2019
in
Mathematics
by
kratos
polytropic process
multiple devices
energy equation
ideal gas
thermodynamics
cycle processes
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1
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A 0.5-m-long steel rod with a 1-cm diameter is stretched in a tensile test. What is the required work to obtain
asked
Feb 26, 2019
in
Mathematics
by
kratos
polytropic process
thermodynamics
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1
answer
Helium gas expands from 20 psia, 600 R and 9 ft^3 to 15 psia in a polytropic process with n = 1.667.
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Feb 15, 2019
in
Mathematics
by
kratos
polytropic process
thermodynamics
energy equation
ideal gas
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1
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Helium gas expands from 20 psia, 600 R and 9 ft^3 to 15 psia in a polytropic process with n = 1.667. How much heat transfer
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Feb 13, 2019
in
Mathematics
by
kratos
polytropic process
energy equation
thermodynamics
ideal gas
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1
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If I have 1 ft^3 of ammonia at 15 psia, 60 F how much mass is that?
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Feb 3, 2019
in
Mathematics
by
kratos
polytropic process
energy
ideal gas
thermodynamics
force
density
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1
answer
One mole gas is first cooled from 300 K to 150 K at constant volume and then heated from 150 K to 300 K at constant
asked
Feb 2, 2019
in
Class 12
by
kratos
polytropic process
classification of elements and periodicity in properties
neet
class-11
jee
aiims
thermodynamics
aiims 2019
jee mains
states of matter
kinetic theory of gases
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vote
1
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A square wire frame of size L is dropped in a liquid. On taking out, a membrane is formed. If the surface tension of the liquid is T,
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Jan 21, 2019
in
Class 12
by
kratos
polytropic process
neet
fluid mechanics
jee
aiims
moving charges and magnetism
thermodynamics
mechanical properties of fluids
properties of solids and liquids
jee mains
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1
answer
A cylindrical gas tank 3 ft long, inside diameter of 8 in., is evacuated and then filled with carbon dioxide gas at 77 F.
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Jan 10, 2019
in
Mathematics
by
kratos
polytropic process
multiple devices
phase diagrams
thermodynamics
critical points
cycle processes
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1
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Air in a piston/cylinder arrangement is at 110 kPa, 25°C, with a volume of 50 L. It goes through a reversible polytropic process to a final state
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Jan 9, 2019
in
Mathematics
by
kratos
polytropic process
thermodynamics
energy equation
polytropic processes
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1
answer
The ***** grille on the back of a refrigerator has a surface temperature of 95 F with a total surface area of 10 ft^2.
asked
Jan 1, 2019
by
kratos
polytropic process
motion and measurement of distances
heat transfer rates
thermodynamics
class-6
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1
answer
For water at 100 kPa with a quality of 10% find the volume fraction of vapor.
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Dec 28, 2018
in
Mathematics
by
kratos
polytropic process
thermodynamics
energy equation
entropy generation
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vote
1
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A ring mass of 1 gm and radius 3 cm is in the surface of a liquid of surface tension 8 × 10^–2 N/m.
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Dec 5, 2018
in
Class 12
by
kratos
polytropic process
neet
class-11
aiims
jee
mechanical properties of fluids
thermodynamics
properties of matter
properties of solids and liquids
jee mains
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votes
1
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Helium gas expands from 125 kPa, 350 K and 0.25 m^3 to 100 kPa in a polytropic process with n = 1.667. Is the work positive,
asked
Nov 27, 2018
in
Mathematics
by
kratos
polytropic process
energy equation
ideal gas
thermodynamics
polytropic processes
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vote
1
answer
Helium gas expands from 125 kPa, 350 K and 0.25 m^3 to 100 kPa in a polytropic process with n = 1.667. How much work does it give out ?
asked
Nov 17, 2018
in
Mathematics
by
kratos
polytropic process
thermodynamics
energy equation
ideal gas
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