Hot air balloons float in air because of the low density of the air inside the balloon. Explain this with the help of an appropriate gas law.

Hot air balloons float in air because of the low density of the air inside the balloon. Explain this with the help of an appropriate gas law.
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Hot air balloons float in air because of the low density of the air inside the balloon. Explain this with the help of an appropriate gas law.
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Robert and David were preparing to have a water balloon fight. 'No Fair' cried Robert, 'You have 3 times as many as I do!' David said 'Fine!' and gave Robert 10 more balloons. 'Still not fair!' argued Robert, 'You still have twice as many as I do.' How many more balloons must David give Robert for them to have the same number? -Riddles

Description : Robert and David were preparing to have a water balloon fight. 'No Fair' cried Robert, 'You have 3 times as many as I do!' David said 'Fine!' and gave Robert 10 more balloons. 'Still not fair!' ... as I do.' How many more balloons must David give Robert for them to have the same number? -Riddles

Last Answer : David must give Robert another 20 water balloons, giving them each 60. Robert started with 30 water balloons and David with 90.

What would happen if the air inside a hot air balloon cooled down?

Description : What would happen if the air inside a hot air balloon cooled down?

Last Answer : What is the answer ?

A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with altitude (d) The buoyant force exerted by the air on the balloon is greater than the weight of the balloon

Description : A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with ... The buoyant force exerted by the air on the balloon is greater than the weight of the balloon

Last Answer : Ans:(d)

Clouds float in the atmosphere because of their – (1) low pressure (2) low density (3) low viscosity (4) low temperature

Description : Clouds float in the atmosphere because of their – (1) low pressure (2) low density (3) low viscosity (4) low temperature

Last Answer : (2) low density Explanation: The key to why clouds float is that the density of the same volume of cloud material is less than the density of the same amount of dry air. Just as oil floats on water ... it is less dense, clouds float on air because the moist air in clouds is less dense than dry air.

The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density

Description : The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density

Last Answer : (4) density Explanation: Clouds generally form, survive and grow in air that is moving upward. Rising air expands as the pressure on it decreases, and that expansion into thinner, high-altitude air causes cooling.

Clouds float in the atmosphere because of their (1) low pressure (2) low density (3) low viscosity (4) low temperature

Description : Clouds float in the atmosphere because of their (1) low pressure (2) low density (3) low viscosity (4) low temperature

Last Answer : low density

Were hot air balloons ever used as a cargo transportation solution?

Description : Were hot air balloons ever used as a cargo transportation solution?

Last Answer : Ever? Maybe. But it's a very problematic way to carry something from place to place. if you really mean an un-powered and un-tethered hot air balloon, as those are dependent on ... -balloon-transport-company/worldwide/ They guarantee they drop your package within 100 meters of your desired target.

How do people navigate hot air balloons?

Description : How do people navigate hot air balloons?

Last Answer : You can only choose to climb or dive, by releasing hot air from the balloon, or warm the air in the balloon to climb. For the direction, all you can do is to let the wind carry you.

Why do the hot air balloons fly high?

Description : Why do the hot air balloons fly high?

Last Answer : Why do the hot air balloons fly high?

How does one control the movement of hot air balloons?

Description : How does one control the movement of hot air balloons?

Last Answer : Hot air balloons rise into the sky because of the fundamental property of the hot air filled in them; air when heated becomes lighter (less denser) than the surrounding cold air. The balloon ... air balloon enthusiasts venture out after studying the weather and making sure there are no strong winds.

Give reason: a) Soda bottles are often labelled “store in cool and dry place”. b) Balloons pops out during hot summer more frequently than in winter. c) During winter football filled with air reduces to its original size when taken outdoors.

Description : Give reason: a) Soda bottles are often labelled “store in cool and dry place”. b) Balloons pops out during hot summer more frequently than in winter. c) During winter football filled with air reduces to its original size when taken outdoors.

Last Answer : a) Soda bottles are often labelled store in cool and dry place . The carbon dioxide filled in soda bottles on exposure to heat, expands because the gas inside the bottle expands as temperature ... . When football is taken out, its temperature decreases so the volume to gas filled also decreases.

Why do hot air balloons rise up?

Description : Why do hot air balloons rise up?

Last Answer : Since hot gases rose up in air, so hot air in balloon causes it to rise up.

Have they ever created a container that could contain a vacuum and withstand the pressure differences and be like a balloon and float?

Description : Have they ever created a container that could contain a vacuum and withstand the pressure differences and be like a balloon and float?

Last Answer : Yes, it’s easy enough to make a vacuum container, but no, it will not float, it will be heavier than air. To make it float, you need to fill it with something lighter than air (helium, hydrogen, hot air) to compensate for the weight of the container.

A hydrogen balloon floats because of – (1) Air pressure decreases with decrease in height (2) Air pressure decreases with decrease in weight (3) Weight of the balloon is less than the weight of air displaced by it (4) The pressure inside the balloon is more than the pressure outside it

Description : A hydrogen balloon floats because of – (1) Air pressure decreases with decrease in height (2) Air pressure decreases with decrease in weight (3) Weight of the balloon is less than the weight of air displaced by it (4) The pressure inside the balloon is more than the pressure outside it

Last Answer : (3) Weight of the balloon is less than the weight of air displaced by it Explanation: A hydrogen atom is very light. Most of the air on earth is made up of nitrogen, oxygen, and carbon dioxide. ... grams per liter. Nitrogen, which makes up 80% of the air we breathe, weighs 1.2506 grams per liter.

A hydrogen balloon floats up because of (1) air pressure decreases with decrease in height (2) air pressure decreases with decrease in weight (3) weight of the balloon is less than the weight of air displaced by it. (4) the pressure inside the balloon is more than the pressure outside it

Description : A hydrogen balloon floats up because of (1) air pressure decreases with decrease in height (2) air pressure decreases with decrease in weight (3) weight of the balloon is less than the weight of air displaced by it. (4) the pressure inside the balloon is more than the pressure outside it

Last Answer : weight of the balloon is less than the weight of air displaced by it.

Have you ever been in a hot air balloon?

Description : Have you ever been in a hot air balloon?

Last Answer : I grew up with this type of activity. My aunt makes hot air balloons for Minnesota, London Canada and Wisconsin. It is really a beautiful site when they are all going up for a festival :-)

Hot air balloon ride in San Francisco?

Description : Hot air balloon ride in San Francisco?

Last Answer : I think you’ll fid what you are looking for here

One sunny afternoon, three men go for a ride on a hot air balloon over the Sahara desert. An hour into the trip, the balloon begins to lose altitude. A month later, someone found one of the ballooners laying on the desert sand dead, naked, and holding half a toothpick. What happened to him? -Riddles

Description : One sunny afternoon, three men go for a ride on a hot air balloon over the Sahara desert. An hour into the trip, the balloon begins to lose altitude. A month later, someone found one of the ballooners laying on the desert sand dead, naked, and holding half a toothpick. What happened to him? -Riddles

Last Answer : As the balloon lost altitude, the men took of their clothes and threw them overboard to decrease the weight of the balloon. The balloon continued to drop so the men drew straws to see who would be forced to jump. The dead man in the desert drew the shortest one (the half toothpick).

True or false? No one has ever traveled around the world in a hot air balloon. -General Knowledge

Description : True or false? No one has ever traveled around the world in a hot air balloon. -General Knowledge

Last Answer : False, pilot Steve Fossett has traveled around the world in a hot air balloon.

What keeps the hot air balloon in the air?

Description : That it doesn't fall ....

Last Answer : The buoyancy of the balloon is lighter than the surrounding cold air of the same volume

How to control a hot air balloon?

Description : Do you think it only flies where the wind blows? Or that it can be controlled differently?

Last Answer : It only flies where the wind blows ... ;-) It can only be controlled in the vertical direction (heat - rise, heat - fall) - and thus you can choose (or) the height (air layer) with ´suitable´flow direction - the wind does not blow in the same direction (or speed) everywhere.

A hot air balloon has a volume of 2800 m^3 at 99°C. What is the volume if the air cools to 80°C?

Description : A hot air balloon has a volume of 2800 m^3 at 99°C. What is the volume if the air cools to 80°C?

Last Answer : A hot air balloon has a volume of 2800 m3 at 99°C. What is the volume if the air cools to 80°C?

What is a hot air balloon?

Description : What is a hot air balloon?

Last Answer : At the end of a hot air balloon flight the heated air inside isallowed to escape through a panel that is opened either in the topor side of the balloon envelope. The crew then squeezes ... then packs it away in a largebag ready for the next flight. This process is called deflating theballoon

How high will you go with a hot air balloon tour?

Description : How high will you go with a hot air balloon tour?

Last Answer : While a hot air balloon can fly several miles in the air, a tour balloon will generally only go about a mile up due to pressure concerns.

Will there be hot air balloon rides for the Spring Poppy Festival?

Description : Will there be hot air balloon rides for the Spring Poppy Festival?

Last Answer : It looks like there will be hot air balloon rides at the Spring Poppy Festival!

What happens when a balloon with little air is tied to the mouth of a bottle with hot water? Why?

Description : What happens when a balloon with little air is tied to the mouth of a bottle with hot water? Why?

Last Answer : The balloon increases in size because temperature increases kinetic energy of gas molecules of balloon. This increases the random movement of gas molecules. Hence the volume increases gradually.

Who invented the Hot Air Balloon? A. Davy B. Montgolfier (Answer) C. Edison D. Jarvik

Description : Who invented the Hot Air Balloon? A. Davy B. Montgolfier (Answer) C. Edison D. Jarvik

Last Answer : B. Montgolfier (Answer)

Helium gas is used in gas balloons instead of hydrogen gas because it is (1) lighter than hydrogen (2) more abundant than hydrogen (3) non-combustible (4) more stable

Description : Helium gas is used in gas balloons instead of hydrogen gas because it is (1) lighter than hydrogen (2) more abundant than hydrogen (3) non-combustible (4) more stable 

Last Answer : non-combustible

(2) it is lighter than air Explanation: Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. A well-known but minor use is as a lifting gas in balloons and airships

Description : (2) it is lighter than air Explanation: Helium is the second lightest element and is the second most abundant element in the observable universe, being present at about 24% of the total elemental mass ... elements combined. A well-known but minor use is as a lifting gas in balloons and airships

Last Answer : Ammonial is a mixture of – (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

The gas used for filling weather balloons is – (1) helium (2) hydrogen (3) air (4) nitrogen

Description : The gas used for filling weather balloons is – (1) helium (2) hydrogen (3) air (4) nitrogen

Last Answer : (1) helium Explanation: A balloon is an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons can be made from ... others are used for practical purposes such as meteorology, medical treatment, military defense, or transportation.

Which gas is preferred for filling the weather balloons and air ships?

Description : Which gas is preferred for filling the weather balloons and air ships?

Last Answer : Helium

Which gas is preferred for filling the weather balloons and air ships?

Description : Which gas is preferred for filling the weather balloons and air ships?

Last Answer : Helium

The gas used for filling weather balloons is (1) helium (2) hydrogen (3) air (4) nitrogen

Description : The gas used for filling weather balloons is (1) helium (2) hydrogen (3) air (4) nitrogen

Last Answer : helium

A steel ball floats on mercury because (a) mercury does not allow any metallic ball to sink in it (b) mercury is also a metal in the liquid form (c) the density of mercury is higher than that of steel (d) a steel ball can be made to float on any liquid by suitable adjustment

Description : A steel ball floats on mercury because (a) mercury does not allow any metallic ball to sink in it (b) mercury is also a metal in the liquid form (c) the density of mercury is higher than that of steel (d) a steel ball can be made to float on any liquid by suitable adjustment

Last Answer : Ans:(c)

A large ship can float but a steel needle sinks because of (a) Viscosity (b) Surface tension (c) Density (d) None of these

Description : A large ship can float but a steel needle sinks because of (a) Viscosity (b) Surface tension (c) Density (d) None of these

Last Answer : Ans:(d)

Ice float on water because its density is (1) more than water (2) less than water (3) zero (4) same as water

Description : Ice float on water because its density is (1) more than water (2) less than water (3) zero (4) same as water

Last Answer : (2) less than water Explanation: Archimedes' Principle states that for an object to floaton water, it must displace an equal amount of water. Ice floats because it is about 9% less dense than liquid water.

A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal (A) Density of metal can't be determined (B) Metal is twice as dense as water (C) Metal will float in water (D) Metal is twice as dense as unknown fluid

Description : A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then  which is correct statement about density of metal  (A) Density of metal can't be determined  (B) ... as water  (C) Metal will float in water  (D) Metal is twice as dense as unknown fluid 

Last Answer : (A) Density of metal can't be determined 

A balloon lifting in air follows the following principle (A) Law of gravitation (B) Archimedes principle (C) Principle of buoyancy (D) All of the above

Description : A balloon lifting in air follows the following principle (A) Law of gravitation (B) Archimedes principle (C) Principle of buoyancy (D) All of the above

Last Answer : Answer: Option D

A balloon filled with helium rises in air because – (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Description : A balloon filled with helium rises in air because – (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Last Answer : (3) helium is less dense than air Explanation: A gas balloon is any balloon that stays aloft due to being filled with a gas less dense than air or lighter than air (such as helium ... balloons) as the dominant form of airship. as balloons remained popular throughout the age before powered flight.

A balloon filled with helium rises in air because (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Description : A balloon filled with helium rises in air because (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Last Answer : helium is less dense than air

It is easy to burst a gas-filled balloon with a needle than with a nail. It is because – (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Description : It is easy to burst a gas-filled balloon with a needle than with a nail. It is because – (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Last Answer : (3) needle exerts more pressure than nail on the balloon. Explanation: It is easy to burst a gas-filled balloon with a needle than with a nail because the needle applies more pressure than nail. Besides, ... tip of the needle, so only a little force gives a lot of pressure (pressure = force/area).

It is easy to burst a gas-filled balloon with a neelde than with a nail. It is because (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Description : It is easy to burst a gas-filled balloon with a neelde than with a nail. It is because (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Last Answer : needle exerts more pressure than nail on the balloon.

A balloon is inflated with helium gas at room temperature of 25 °C and at 1 bar pressure when its initial volume is 2.27L and allowed to rise in air.

Description : A balloon is inflated with helium gas at room temperature of 25 °C and at 1 bar pressure when its initial volume is 2.27L and allowed to rise in air.

Last Answer : A balloon is inflated with helium gas at room temperature of 25 °C and at 1 bar pressure when ... at which volume of the balloon can stay inflated ?

When we inflated a balloon the volume and pressure increases . does it violate the Boyle's law . explain?

Description : When we inflated a balloon the volume and pressure increases . does it violate the Boyle's law . explain?

Last Answer : No, this doesn't because P1V1 is a constant, which I think meansit needs to have the same quantity of gas, which blowing a balloonisn't. Boyle's law is only used when a fixed amount of gas is beingcompressed or uncompressed, changing only its volume andpressure.

When we inflated a balloon the volume and pressure increases . does it violate the boyles law . explain?

Description : When we inflated a balloon the volume and pressure increases . does it violate the boyles law . explain?

Last Answer : No, this doesn't because P1V1 is a constant, which I think meansit needs to have the same quantity of gas, which blowing a balloonisn't. Boyle's law is only used when a fixed amount of gas is beingcompressed or uncompressed, changing only its volume andpressure.

Balloons are filled with which gas? -Do You Know?

Description : Balloons are filled with which gas? -Do You Know?

Last Answer : answer:

What gas is used in balloons ?

Description : What gas is used in balloons ?

Last Answer : Helium gas is used in balloons.

Where Can I get Helium gas for Balloons?

Description : Where Can I get Helium gas for Balloons?

Last Answer : You can buy helium at Amazon or flipcart. You can not make He at home He is a noble gas you may know . It is extracted from natural gas during the extraction of natural gas from petroleum wells.

What will Happen If I inhale Helium gas from balloons?

Description : What will Happen If I inhale Helium gas from balloons?

Last Answer : If you take one hit you still have oxygen in your lungs, so you live a while longer. If you take a second hit, you have depleted the oxygen in your lungs. At some point you pass out from lack of ... take one hit at a time. But inhaling nitrogen is different: you can pass out with a single breath.

Which gas is used to inflate balloons?

Description : Which gas is used to inflate balloons?

Last Answer : Usually air is used. Helium is probably the best choice of the gases since several others can be dangerous to use. But, others such as neon, nitrogen and even methane could be used.