Question
The air in a hot-air balloon at 786 torr is heated from 19.0°C to 33.0°C. Assuming...
The air in a hot-air balloon at 786 torr is heated from 19.0°C to 33.0°C. Assuming that the moles of air and the pressure remain constant, what is the density of the air at each temperature? (The average molar mass of air is 29.0 g/mol.) Density at 19.0°C = Density at 33.0°C=
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
Be sure to answer all parts. The air in a hot-air balloon at 785 torr is...
Be sure to answer all parts. The air in a hot-air balloon at 785
torr is heated from 15.0°C to 41.0°C. Assuming that the moles of
air and the pressure remain constant, what is the density of the
air at each temperature? (The average molar mass of air is 29.0
g/mol.)
Density at 15.0°C g/L?
Density at 41.0°C g/L?
Challenge problem. (extra credit) Consider a hot-air balloon. The deflated balloon, gondola, and two passengers have...
Challenge problem. (extra credit) Consider a hot-air balloon.
The deflated balloon, gondola, and two passengers have a combined
mass of 315 kg. When inflated, the balloon contains 912 m3 of hot
air. Find the temperature (?C) of the hot air required to lift the
balloon off the ground. The air outside the balloon has a
temperature of 20.2?C and a pressure of 0.916 × 10^5 Pa. The
pressure of the hot air inside the balloon is the same as the...
1) A hot air balloon consists of a very large bag filled with heated air at...
1) A hot air balloon consists of a very large bag filled with
heated air at 120.0 °C produced from a propane burner. It has a
basket hanging under it in which several people can ride. The
average hot air balloon has a volume of 2.80 × 103 m3 when fully
inflated.
a) Determine the work (in kJ) needed to inflate the balloon under
an external air pressure of 1.00 atm.
b) The specific heat of the air found in...
We consider a hot-air balloon of mass 263 kg (basket and envelope). The spherical envelope of...
We consider a hot-air balloon of mass 263 kg (basket and
envelope). The spherical envelope of the balloon has a diameter of
17 m when fully inflated. To what temperature (in °C) must the
enclosed air be heated for the balloon to carry five standard men?
Assume the surrounding air is at 20°C and is treated as an ideal
gas. Use 29 g/mol for the molar mass of air. (Assume the mass of
each standard man is 70 kg.)
We consider a hot-air balloon of mass 263 kg (basket and envelope). The spherical envelope of...
We consider a hot-air balloon of mass 263 kg (basket and
envelope). The spherical envelope of the balloon has a diameter of
17 m when fully inflated. To what temperature (in °C) must the
enclosed air be heated for the balloon to carry five standard men?
Assume the surrounding air is at 20°C and is treated as an ideal
gas. Use 29 g/mol for the molar mass of air. (Assume the mass of
each standard man is 70 kg.)
what...
1. In an air-conditioned room at 19.0 ∘C, a spherical balloon had the diameter of 50.0...
1. In an air-conditioned room at 19.0 ∘C, a spherical balloon
had the diameter of 50.0 cm. When taken outside on a hot summer
day, the balloon expanded to 51.0 cm in diameter. What was the
temperature outside in degrees Celsius? Assume that the balloon is
a perfect sphere and that the pressure and number of moles of air
molecules remains the same.
2. A cylinder with a movable piston contains 2.00 g of helium,
He, at room temperature. More...
1. A hot-air balloon, open at one end, rises when the air inside is heated by...
1. A hot-air balloon, open at one end, rises when the air inside
is heated by a flame. How does the temperature, pressure and
density of the air inside the balloon compare to the air outside?
For each property, state if they are higher, lower or the same
inside the balloon versus outside.
2. What is the atomic mass of Aluminum (Al)? Give your answer in
both atomic mass units and in kilograms. Mass = _____________ u
(atomic mass units)...
We consider a hot-air balloon of mass 262 kg (basket and envelope). The spherical envelope of...
We consider a hot-air balloon of mass 262 kg (basket and
envelope). The spherical envelope of the balloon has a diameter of
17 m when fully inflated. To what temperature (in °C) must the
enclosed air be heated for the balloon to carry five standard men?
Assume the surrounding air is at 20°C and is treated as an ideal
gas. Use 29 g/mol for the molar mass of air. (Assume the mass of
each standard man is 70 kg.)
PLZZ...
A hot air balloon has a mass of 250 kg and carries two passengers whose average...
A hot air balloon has a mass of 250 kg and carries two
passengers whose average weight is 84 Kg. The balloon, which has a
diameter of 12 m, rises through atmospheric air which is at 20oC.
Find the total buoyant force on the balloon. Atmospheric pressure
is 100 kPa with gas constant = 8.13 kJ/kmol.K and molar mass of the
air is 28.97 g/mol
How hot is the air in the top (crown) of a hot air balloon? Information from...
How hot is the air in the top (crown) of a hot air balloon?
Information from Ballooning: The Complete Guide to Riding the
Winds, by Wirth and Young (Random House), claims that the air
in the crown should be an average of 100°C for a balloon to be in a
state of equilibrium. However, the temperature does not need to be
exactly 100°C. What is a reasonable and safe range of temperatures?
This range may vary with the size and...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 1 minute ago
asked 4 minutes ago
asked 5 minutes ago
asked 6 minutes ago
asked 25 minutes ago
asked 26 minutes ago
asked 43 minutes ago
asked 47 minutes ago
asked 50 minutes ago
asked 52 minutes ago
asked 1 hour ago
asked 1 hour ago