Air having initial pressure, volume and temperature as 250 kN/m2, 0.1 m3 and 180°C, respectively, is...
Air having initial pressure, volume and temperature as 250
kN/m2, 0.1 m3 and 180°C,
respectively, is cooled at a constant pressure until its
temperature reaches 25°C. Calculate the
amount of heat extracted and work done on the gas during the
process. Use reasonable values of
R and cp for air.
Homework Answers
Add Answer to:
Air having initial pressure, volume and temperature as 250
kN/m2, 0.1 m3 and 180°C,
respectively, is...
1. Volume of gas 0.6 ?3 and pressure 60 KN/?2 changed until the pressure became 420...
1. Volume of gas 0.6 ?3 and pressure 60 KN/?2 changed until the pressure became 420 KN/?2 while the temperature remained constant. Find the new volume of gas? 2. The amount of gas size 0.2 m3 and temperature 303 ?0 was cooled at a constant pressure until the volume reach to 0.1 m3. Find the final temperature
Part 1: Air at 1 atm and 200° C occupies an initial volume Vi of 1000...
Part 1: Air at 1 atm and 200° C occupies an initial volume Vi of 1000 cm3 in a cylinder. The air is confined by a piston which has a constant restraining force so that the gas pressure remains constant. Heat is added to the air until its temperature reaches 2600° C. Calculate the heat added Calculate the work done by the gas Calculate the change in internal energy of the gas Part 2: An ideal gas is contained in...
Q-1 Air at 1 atm and 20 0C occupies an initial volume of 1000 cm3 in...
Q-1 Air at 1 atm and 20 0C occupies an initial volume of 1000 cm3 in a cylinder. The air is confined by a piston which has a constant restraining force so that the gas pressure always remains constant. Heat is added to the air until its temperature reaches 260 0C. Calculate (a) the heat added (b) the work done by the gas, (c) the change in internal energy of the gas. Q-2 An ideal gas is contained in a...
Air that initially occupies 0.21 m3 at a gauge pressure of 120 kPa is expanded isothermally...
Air that initially occupies 0.21 m3 at a gauge pressure of 120 kPa is expanded isothermally to a pressure of 101.3 kPa and then cooled at constant pressure until it reaches its initial volume. Compute the work done by the air. (Gauge pressure is the difference between the actual pressure and atmospheric pressure.)
Air that initially occupies 0.144 m3 at a gauge pressure of 211.0 kPa is expanded isothermally...
Air that initially occupies 0.144 m3 at a gauge pressure of 211.0 kPa is expanded isothermally to a pressure of 101.3 kPa and then cooled at constant pressure until it reaches its initial volume. Compute the work done by the air. (Gauge pressure is the difference between the actual pressure and atmospheric pressure.)
11-35.A moist air mixture with a dry bulb temperature of 48°C, a relative humidity of 40...
11-35.A moist air mixture with a dry bulb temperature of 48°C, a relative humidity of 40 percent, and a total pressure of 160 kPa is contained in a rigid vessel having a volume of 1.65 m3. The air is cooled until the dry bulb temperature reaches 23°C. Determine the amount of heat transferred, the final pressure of the air, and the amount of water vapor condensed during the process.
The volume and pressure of a gas are 4.30 m3 and 2.10 atm, respectively. (a) If...
The volume and pressure of a gas are 4.30 m3 and 2.10 atm, respectively. (a) If this gas expands to two and one-half its initial volume while the pressure is constant, determine the work done on the gas. (b) On the other hand, if this gas is compressed to one-fourth its initial volume while the pressure is constant, determine the work done on the gas.
QUESTION 24 A piston-cylinder device contains 50 kg of water at 250 kPa and 25 degree...
QUESTION 24
A piston-cylinder device contains 50 kg of water at 250 kPa and 25 degree C. The cross-sectional area of the piston is 0.1 m2. Heat is now transferred to the water, causing part of it to evaporate and expand. When the volume reaches 0.2 m3 the piston reaches a linear spring whose spring constant is 100 kN/m. More heat is transferred to the water until the piston rises 20 cm more. Determine (a) the final pressure and temperature...
Consider a piston-cylinder device (system) that contains 0.06 m3 of air at 300 kPa and 125...
Consider a piston-cylinder device (system) that contains 0.06 m3 of air at 300 kPa and 125 ̊C. (a) If the volume of air in the device increases to 0.15 m3 while the pressure remains constant, determine the work done by the system during the process. (b) If as a result of heat transfer to the surrounding, the pressure and temperature in the device drop to 240 kPa and 55 ̊C, respectively, and the piston is held such that the volume...
An ideal monatomic gas is contained in a vessel of constant volume 0.470 m3. The initial...
An ideal monatomic gas is contained in a vessel of constant volume 0.470 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, respectively. The goal of this problem is to find the temperature and pressure of the gas after 30.0 kJ of thermal energy is supplied to the gas. (a) Use the ideal gas law and initial conditions to calculate the number of moles of gas in the vessel. mol (b) Find the specific...
11-35.A moist air mixture with a dry bulb temperature of 48°C, a relative humidity of 40 percent, and a total pressure of 160 kPa is contained in a rigid vessel having a volume of 1.65 m3. The air is cooled until the dry bulb temperature reaches 23°C. Determine the amount of heat transferred, the final pressure of the air, and the amount of water vapor condensed during the process.
QUESTION 24
A piston-cylinder device contains 50 kg of water at 250 kPa and 25 degree C. The cross-sectional area of the piston is 0.1 m2. Heat is now transferred to the water, causing part of it to evaporate and expand. When the volume reaches 0.2 m3 the piston reaches a linear spring whose spring constant is 100 kN/m. More heat is transferred to the water until the piston rises 20 cm more. Determine (a) the final pressure and temperature...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago