In an adiabatic compression, compression is fast, and the temperature stays the same. compression is fast,...
In an adiabatic compression,
compression is fast, and the temperature stays the same.
compression is fast, and no heat is transferred.
compression is slow, and the temperatures stays the same.
compression is slow, and no heat is transferred.
Homework Answers
In an adiabatic compression, the compression is fast and no heat is transferred.
In an adiabatic process, the heat transfer is negligible. This happens in two ways:
1. The system is so well insulated that there is no scope of
heat transfer to take place.
2. The process should occur so fast that there is no time for the
heat transfer to take place.
Add Answer to:
In an adiabatic compression,
compression is fast, and the temperature stays the same.
compression is fast,...
LUDOLULU U C 60 CL CDU. Q.3) ( Adiabatic compression ) Calculate the temperature after adiabatic...
LUDOLULU U C 60 CL CDU. Q.3) ( Adiabatic compression ) Calculate the temperature after adiabatic compression of a gas to 10.0 atmospheres pressure from initial conditions of 1 atmosphere and 300 K, fo a perfect gas with y 5/3.
The volume of a gas is halved during an adiabatic compression that increases the pressure by...
The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. What is the specific heat ratio?
Ignition power stroke adiabatic expansion compression stroke adiabatic compression Pressure 4. (25 pts) in an internal...
Ignition power stroke adiabatic expansion compression stroke adiabatic compression Pressure 4. (25 pts) in an internal combustion engine, the compression ratio (c), or the ratio volumes in an expansion or compression step, is an important for calculating efficiency. An Otto Engine cycle consists of (see diagram to right): an adiabatic compression step (1-2), a constant volume heating step (2-3). an adiabatic expansion step (3-4), and a constant volume cooling step (4-1). Based on this information, show: a. V3/V4 = V2/...
2.4 (i) In class, we showed that for an adiabatic compression of an ideal gas, pVY...
2.4 (i) In class, we showed that for an adiabatic compression of an ideal gas, pVY =constant, where y = Cp/Cy is the adiabatic index. Find an analogous expression for p and T. (ii) At CUHK, we have several expensive compressors for compressing helium gas. Suppose you (accidentally) use a compressor designed for compressing air to compress helium gas. You intend to compress from 1 atm at 300 K to 5 atm. Calculate the final temperature after the compression and...
5.8×10−2 mol of an ideal monatomic gas undergoes an adiabatic compression that raises its temperature from...
5.8×10−2 mol of an ideal monatomic gas undergoes an adiabatic compression that raises its temperature from 11 ∘C to 41 ∘C. Assume R = 8.315 J/mol⋅K. How much work is done on the gas to compress it? Express your answer to two significant figures and include the appropriate units.
Please give detailed explanation for final part. Thanks. Reversible adiabatic expansion of ideal gas (This question...
Please give detailed explanation for final part. Thanks.
Reversible adiabatic expansion of ideal gas (This question involves working through the final section of lecture 3) Explain why the first Law for an reversible adiabatic process gives AU = -PdV, and why this equation doesn't hold for the Joule expansion. Assuming that for an ideal gas U = CVT, prove that the First Law leads to the statement that PVY is constant in a reversible adiabatic process. A container of Helium...
4.)Write an expression for the relationship between P and V for the adiabatic compression of air....
4.)Write an expression for the relationship between P and V for
the adiabatic compression of air.
5.)do the results above agree with this expression with 5%? what
discrepancies could there be?
6.)Does the syringe return to it's initial volume when the
plunger is released?
7.) provide a Pressure-Volume graph of he compression and
expansion cycle of the gas. label the adiabatic, isothermal and
isovolumetric.
Pressure (kPa) Volume (ml) Temperature (°C Temperature (K) initial 40 26.40 299.55 [102.337 [211-818 Maximum pressure...
An ideal Otto cycle has a compression ratio of 9. At the beginning of the compression...
An ideal Otto cycle has a compression ratio of 9. At the beginning of the compression process, air is at 100 kPa and 17°C, and 900 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle .
An ideal Otto cycle has a compression ratio of 8. At the beginning of the transferred compression...
An ideal Otto cycle has a compression ratio of 8. At the beginning of the transferred compression process, air is at 95 kPa and 27-degree C, and 750 kJ/kg of heat is to air during the constant-volume heat-addition process. Considering the variation of specific heats with temperature (Table A-17), determine (a) the pressure and temperature at the end of the heat addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the...
in an ideal dual combustioncycle, the pressure , volume, and temperature at the beginning of the...
in an ideal dual combustioncycle, the pressure , volume, and temperature at the beginning of the adiabatic compression are 93kn/m2 , 0.05m3, and 24 degrees celcius respectively. The volume ratio of the adiabatic compression is 9:1 . The constant volume heat addition pressure ratio is 1.5:1 and the constant pressure heat addition volume ratio is 2:1 Determine , for this cycle; a. The pressure , volume and temperature at the cycle process change points b. The thermal efficiency of the...
LUDOLULU U C 60 CL CDU. Q.3) ( Adiabatic compression ) Calculate the temperature after adiabatic compression of a gas to 10.0 atmospheres pressure from initial conditions of 1 atmosphere and 300 K, fo a perfect gas with y 5/3.
Ignition power stroke adiabatic expansion compression stroke adiabatic compression Pressure 4. (25 pts) in an internal combustion engine, the compression ratio (c), or the ratio volumes in an expansion or compression step, is an important for calculating efficiency. An Otto Engine cycle consists of (see diagram to right): an adiabatic compression step (1-2), a constant volume heating step (2-3). an adiabatic expansion step (3-4), and a constant volume cooling step (4-1). Based on this information, show: a. V3/V4 = V2/...
2.4 (i) In class, we showed that for an adiabatic compression of an ideal gas, pVY =constant, where y = Cp/Cy is the adiabatic index. Find an analogous expression for p and T. (ii) At CUHK, we have several expensive compressors for compressing helium gas. Suppose you (accidentally) use a compressor designed for compressing air to compress helium gas. You intend to compress from 1 atm at 300 K to 5 atm. Calculate the final temperature after the compression and...
Please give detailed explanation for final part. Thanks.
Reversible adiabatic expansion of ideal gas (This question involves working through the final section of lecture 3) Explain why the first Law for an reversible adiabatic process gives AU = -PdV, and why this equation doesn't hold for the Joule expansion. Assuming that for an ideal gas U = CVT, prove that the First Law leads to the statement that PVY is constant in a reversible adiabatic process. A container of Helium...
4.)Write an expression for the relationship between P and V for
the adiabatic compression of air.
5.)do the results above agree with this expression with 5%? what
discrepancies could there be?
6.)Does the syringe return to it's initial volume when the
plunger is released?
7.) provide a Pressure-Volume graph of he compression and
expansion cycle of the gas. label the adiabatic, isothermal and
isovolumetric.
Pressure (kPa) Volume (ml) Temperature (°C Temperature (K) initial 40 26.40 299.55 [102.337 [211-818 Maximum pressure...
An ideal Otto cycle has a compression ratio of 9. At the beginning of the compression process, air is at 100 kPa and 17°C, and 900 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle .
An ideal Otto cycle has a compression ratio of 8. At the beginning of the transferred compression process, air is at 95 kPa and 27-degree C, and 750 kJ/kg of heat is to air during the constant-volume heat-addition process. Considering the variation of specific heats with temperature (Table A-17), determine (a) the pressure and temperature at the end of the heat addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the...
Most questions answered within 3 hours.
-
For a 2-Level design, with 8 factors, a recommended screening
design model is:
a. Taguchi L12...
asked 21 minutes ago -
1. Define a function in python that returns the sum of the
following 4 lists. Remember...
asked 12 minutes ago -
Elspeth, associate research specialist for a marketing research
firm in a large Midwestern city, had just...
asked 12 minutes ago -
If domestic savings are insufficient to finance domestic private
investment and exports are greater than imports,...
asked 27 minutes ago -
Q.4.
Use the format in Exhibit 9-1 to compute the ending LIFO
inventory and cost of...
asked 33 minutes ago -
Discuss the different receiving and dispatch equipment required
for uploading and loading different types of material...
asked 37 minutes ago -
Which of the following is true for simultaneous testing?
a. Net specificity is greater than the...
asked 41 minutes ago -
Discuss the importance of homologous recombination and
transposition in natural horizontal gene transfer and evolution. Be...
asked 45 minutes ago -
Brittle material has the properties Sut = 30 kpsi and Suc = 90
kpsi. Using the...
asked 44 minutes ago -
*
write about Plastic recycling statistics ( Plastic recycling rate )
last two years , i...
asked 43 minutes ago -
The activation energy for a given reaction is 50.3 kJ/mol. If
the rate constant for the...
asked 1 hour ago -
An entomologist discovers a dung beetle rolling a ball of dung
along the ground, and decides...
asked 3 hours ago