A plastic bag is filled with nitrogen at atmospheric pressure and 28.0 oC. Assume that the...
A plastic bag is filled with nitrogen at atmospheric pressure
and 28.0 oC. Assume that the mass of the bag is
negligible and take the temperature of the outside air to be 0
oC. With the help of this "balloon" we want to lift a
45.0 kg girl off her feet.
How large a volume of nitrogen (in m3) is
required?
2.88
Homework Answers
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A plastic bag is filled with nitrogen at atmospheric pressure
and 28.0 oC. Assume that the...
A balloon whose volume is 770 m3 is to be filled with hydrogen at atmospheric pressure...
A balloon whose volume is 770 m3 is to be filled with hydrogen at atmospheric pressure (1.01×105Pa).If the hydrogen is stored in cylinders with volumes of 1.75 m3 at a gauge pressure of 1.17×106 Pa , how many cylinders are required? Assume that the temperature of the hydrogen remains constant.
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Nitrogen gas is introduced into a large deflated plastic bag. No gas is allowed to escape,...
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Large helium-filled balloons are used to lift scientific equipment to high altitudes. What is the pressure,...
Large helium-filled balloons are used to lift scientific equipment to high altitudes. What is the pressure, in atmospheres, inside such a balloon if it starts out at sea level with a pressure of one atmosphere and a temperature of 10.0 degree C and rises to an altitude where its volume is twenty times the original volume and its temperature is -48DegreeC ? What is the gauge pressure, in atmospheres, in the balloon then? (Assume the atmospheric pressure is constant.)
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1. A 0.550 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 6.39 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal...
Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a)What is the pressure...
Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a)What is the pressure inside such a balloon (in atm) if it starts out at sea level with a temperature of 24.8°C and rises to an altitude where its volume is sixteen times the original volume and its temperature is −33.7°C? (Enter your answer to at least 3 decimal places) atm (b)What is the gauge pressure? (Enter your answer in atm and to at least 3 decimal places....
1) A cylinder is filled with 0.10 mol of an ideal gas at standard temperature and...
1) A cylinder is filled with 0.10 mol of an ideal gas at
standard temperature and pressure, and a 1.4-kg piston seals the
gas in the cylinder (see figure) with a frictionless seal. The
trapped column of gas is 2.1-m high. The piston and cylinder are
surrounded by air, also at standard temperature and pressure. The
piston is released from rest and starts to fall. The motion of the
piston ceases after the oscillations stop with the piston and the...
The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitroge...
The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3 at 1 atm....
5. A very large hot air balloon and its accompanying structure (i.e. the basket, rigging, equipment,...
5. A very large hot air balloon and its accompanying structure (i.e. the basket, rigging, equipment, etc) have a mass of 400 kg. The air inside the balloon must be heated to a temperature of 200 OC for the balloon to lift off the ground when the outside air temperature is 16.0OC. To what temperature must the air be heated if the balloon is to lift off with three 80.0-kg people aboard? Note: Problem 5 requires three pictures of the...
P2) (50 pts.) The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pre...
P2) (50 pts.) The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies, since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3...
Large helium-filled balloons are used to lift scientific equipment to high altitudes. What is the pressure, in atmospheres, inside such a balloon if it starts out at sea level with a pressure of one atmosphere and a temperature of 10.0 degree C and rises to an altitude where its volume is twenty times the original volume and its temperature is -48DegreeC ? What is the gauge pressure, in atmospheres, in the balloon then? (Assume the atmospheric pressure is constant.)
1) A cylinder is filled with 0.10 mol of an ideal gas at
standard temperature and pressure, and a 1.4-kg piston seals the
gas in the cylinder (see figure) with a frictionless seal. The
trapped column of gas is 2.1-m high. The piston and cylinder are
surrounded by air, also at standard temperature and pressure. The
piston is released from rest and starts to fall. The motion of the
piston ceases after the oscillations stop with the piston and the...
The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3 at 1 atm....
P2) (50 pts.) The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies, since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3...
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