The pressure of air in your house can stay constant during the day if the temperature...
The pressure of air in your house can stay constant during the day if the temperature rises. Let the temperatures be 295 K during the day, and 288 K at night, and volume of the house be 900 m3.
Determine the number of moles of air that leave the house during the daytime.
Homework Answers
In
case of any doubt please comment .Add Answer to:
The pressure of air in your house can stay constant during the
day if the temperature...
A room is 6.8 m by 4.2 m by 3 m. (a) If the air pressure...
A room is 6.8 m by 4.2 m by 3 m. (a) If the air pressure in the room is 1 atm and the temperature is 294 K, find the number of moles of air in the room (b) If the temperature rises by 5 K and the pressure remains constant, how many moles of air leave the room?
An automobile tire has a volume of 2.55×10−2 m3 . At a temperature of 295 K...
An automobile tire has a volume of 2.55×10−2 m3 . At a temperature of 295 K the absolute pressure in the tire is 207 kPa . How many moles of air must be pumped into the tire to increase its pressure to 272 kPa , given that the temperature and volume of the tire remain constant?
1.A Carnot air conditioner keeps the temperature in a house at 297 K on a day...
1.A Carnot air conditioner keeps the temperature in a house at 297 K on a day where the outside temperature is 311 K. What is the coefficient of performance of this air conditioner? 2.A Carnot engine has an efficiency of 22.0%. It is operating between two reserves at constant temperature that differ by 750C. What is the minimum temperature (TL) and the maximum temperature (TH)?
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is an ideal gas.) kg (c) Does the value calculated in part (b) agree with the stated...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.2074...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.2074 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? 35.0146 Your response differs from the correct answer by more than 10%. Double check your calculations, mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is...
When the low tire pressure light came on, the pressure was low because the temperature is...
When the low tire pressure light came on, the pressure was low because the temperature is low. What can you infer about the volume and moles of gas within the tire? When you fill the tire with additional air at the gas station how are the variables (pressure, volume, number of moles, and temperature) changing? 3. Your tire has a volume of 10 liters and contains approximately 0.4 moles of air at 1 atm and 30.8 ºC (303.8K). What is...
On a summer day, the air temperature is 36°C and the relative humidity is 20%. Water...
On a summer day, the air temperature is 36°C and the relative humidity is 20%. Water evaporates from the surface of a lake at a rate of 0.20 kg/h per square metre of water surface area. The temperature of water is 25°C. (a) Determine the mass transfer coefficient. (10 marks) (b) Determine the convective heat transfer coefficient. (10 marks) (c) Determine the net heat loss (in W/m2) from the lake. (5 marks) The specific volume of water vapour at 25°C...
A room is 6.6 m by 5.8 m by 3 m 1) (a) If the air...
A room is 6.6 m by 5.8 m by 3 m 1) (a) If the air pressure in the room is 1 atm and the temperature is 290 K, find the number of moles of air in the room. mol You currently have O submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) (b) If the temperature rises by 3 K and the pressure remains constant, how many moles of...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are 295 K and 100 kPa, respectively. The compression ratio is 10 and the maximum temperature during the cycle is 2200 K. Draw P-v and T-s diagrams of the cycle and determine: a) The net work in kJ/kg. b) The thermal efficiency. c) The mean effective pressure, in kPa. Assume R = 287 J/kg.K for air.
Air flows through a constant area duct. The pressure and temperature of the air at the...
Air flows through a constant area duct. The pressure and temperature of the air at the inlet to the duct are P1 = 100 kPa absolute, and T1 = 298 K, respectively. Inlet Mach number is M1 = 0.1. Heat is transferred to the air as it flows through the duct and as a result the Mach number at the exit increases. a) Find the pressure and temperature at the exit, while the exit Mach number changes between M=0.2 to...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is an ideal gas.) kg (c) Does the value calculated in part (b) agree with the stated...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.2074 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? 35.0146 Your response differs from the correct answer by more than 10%. Double check your calculations, mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is...
A room is 6.6 m by 5.8 m by 3 m 1) (a) If the air pressure in the room is 1 atm and the temperature is 290 K, find the number of moles of air in the room. mol You currently have O submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) (b) If the temperature rises by 3 K and the pressure remains constant, how many moles of...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are 295 K and 100 kPa, respectively. The compression ratio is 10 and the maximum temperature during the cycle is 2200 K. Draw P-v and T-s diagrams of the cycle and determine: a) The net work in kJ/kg. b) The thermal efficiency. c) The mean effective pressure, in kPa. Assume R = 287 J/kg.K for air.
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