Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged cycle processes
+1
vote
1
answer
Two tanks are connected by a valve and line. The volumes are both 35 ft^3 with R-134a at 70 F, quality 25% in A
asked
Apr 2, 2019
in
Mathematics
by
kratos
multiple devices
energy equation
bernoulli
thermodynamics
cycle processes
reversible shaft work
+3
votes
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
asked
Mar 2, 2019
in
Mathematics
by
kratos
polytropic process
multiple devices
energy equation
ideal gas
thermodynamics
cycle processes
+2
votes
1
answer
Nitrogen at 90 lbf/in.^2, 260 F is in a 20 ft^3 insulated tank connected to a pipe with a valve to a second insulated initially empty
asked
Mar 2, 2019
in
Mathematics
by
kratos
entropy of ideal gases
thermodynamics
multiple devices
cycle processes
+1
vote
1
answer
Geothermal underground hot water or steam can be used to generate electric power. Does that violate the second law?
asked
Feb 14, 2019
in
Class 11
by
kratos
multiple devices
class- 11
availability
thermodynamics
cycle processes
irreversible processes
steady state
+3
votes
1
answer
A spherical helium balloon of 30 ft in diameter is at ambient T and P, 60 F and 14.69 psia. How much helium does it contain?
asked
Feb 13, 2019
in
Mathematics
by
kratos
multiple devices
ideal gas
phase diagrams
thermodynamics
critical points
cycle processes
+3
votes
1
answer
Tyre of a bicycle has volume 2000 cm^3 . Initially, the tube is filled to 0.75 of its volume by air
asked
Jan 12, 2019
in
JEE
by
kratos
multiple devices
jee main 2021
class-11
jee
thermodynamics
cycle processes
jee main
kinetic theory
+2
votes
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.
asked
Jan 10, 2019
in
Mathematics
by
kratos
polytropic process
multiple devices
phase diagrams
thermodynamics
critical points
cycle processes
+2
votes
1
answer
A nitrogen line, 300 K and 0.5 MPa, , is connected to a turbine that exhausts to a closed initially empty tank of 50 m3.
asked
Dec 24, 2018
in
Mathematics
by
kratos
thermodynamics
multiple devices
cycle processes
transient processes
+2
votes
1
answer
An initially empty cylinder is filled with air from 70 F, 15 psia until it is full. Assuming no heat transfer is the final temperature larger,
asked
Dec 13, 2018
in
Mathematics
by
kratos
transient processes
multiple devices
energy equation
thermodynamics
cycle processes
+1
vote
1
answer
A 35 ft^3 rigid tank has propane at 15 psia, 540 R and connected by a valve to another tank of 20 ft^3 with
asked
Dec 9, 2018
in
Mathematics
by
kratos
multiple devices
bernoulli
phase diagrams
thermodynamics
critical points
cycle processes
reversible shaft work
+2
votes
1
answer
A 1-ft^3 tank, that is initially evacuated is connected by a valve to an air supply line flowing air at 70 F, 120 lbf/in.^2.
asked
Nov 21, 2018
in
Mathematics
by
kratos
thermodynamics
multiple devices
cycle processes
+3
votes
1
answer
An initially empty cylinder is filled with air from 20°C, 100 kPa until it is full. Assuming no heat transfer is the final temperature
asked
Nov 16, 2018
in
Mathematics
by
kratos
transient processes
multiple devices
energy equation
compressibility factor
thermodynamics
cycle processes
+1
vote
1
answer
A proposal is made to use a geothermal supply of hot water to operate a steam turbine. The high-pressure
asked
Oct 1, 2018
in
Mathematics
by
kratos
multiple devices
throttle flow
thermodynamics
cycle processes
irreversible processes
steady state
+1
vote
1
answer
Determine the mass of an ethane gas stored in a 25 ft^3 tank at 250 F, 440 lbf/in.^2 using the compressibility chart. Estimate
asked
Sep 23, 2018
in
Mathematics
by
kratos
transient processes
multiple devices
compressibility factor
entropy of ideal gases
thermodynamics
cycle processes
+2
votes
1
answer
An initially empty bottle is filled with water from a line at 0.8 MPa, 350°C. Assume no heat transfer and that the bottle
asked
Aug 4, 2018
in
Mathematics
by
kratos
thermodynamics
multiple devices
cycle processes
transient processes
+3
votes
1
answer
Air at 540 F, 60 lbf/in.^2 with a volume flow 40 ft^3/* runs through an adiabatic turbine with exhaust pressure of 15 lbf/in.^2. Neglect kinetic
asked
Jul 17, 2018
in
Mathematics
by
kratos
multiple devices
thermodynamics
reversible processes
cycle processes
steady state
steady irreversible processes
+1
vote
1
answer
A substance is at 70 F, 300 lbf/in.^2 in a 10 ft^3 tank. Estimate the mass from the compressibility chart if the
asked
Jun 13, 2018
in
Mathematics
by
kratos
multiple devices
compressibility factor
bernoulli
thermodynamics
cycle processes
reversible shaft work
+3
votes
1
answer
A 20-ft^3 tank contains ammonia at 20 lbf/in.^2, 80 F. The tank is attached to a line flowing ammonia at 180 lbf/in.^2, 140 F.
asked
Jun 11, 2018
in
Mathematics
by
kratos
thermodynamics
multiple devices
cycle processes
+1
vote
1
answer
A nitrogen line, 540 R, and 75 lbf/in.2, is connected to a turbine that exhausts to a closed initially empty tank of 2000 ft^3,
asked
May 28, 2018
in
Mathematics
by
kratos
thermodynamics
multiple devices
cycle processes
+3
votes
1
answer
Helium in a steel tank is at 40 psia, 540 R with a volume of 4 ft^3. It is used to fill a balloon. When the tank pressure drops to 24 psia
asked
May 5, 2018
in
Mathematics
by
kratos
thermodynamics
multiple devices
cycle processes
To see more, click for the
full list of questions
or
popular tags
.