When the air inside a hot air balloon is heated, why does the balloon rise? (Assume the air pressure inside the balloon is equal to the air pressure outside the balloon.)

Q: An aluminum cup of 76 cm³ capacity is completely filled with glycerin at 19°C. How much glycerin…

A: Let Vc is the original volume of the cup. αa​is the coefficient of linear expansion of aluminium and…

Q: At 27°C and 1 ATP, a volume of air abruptly shrank by half. Temperature and pressure must be…

A: Concept: Here, In this Question, the Volume of air is suddenly compressed to half its original…

Q: At high altitudes, such as being up a mountain, the air pressure is lower (aka the air is thin) Many…

A: At high altitudes, air pressure at the surface of batter of dough is less due to which the batter…

Q: The atmospheric pressure on the top of Mt. Everest is 0.333 atm and the average temperature is -25.0…

A: The ideal gas is an ideal concept where the force between the gas molecules is neglected and the…

Q: When you blow on the back of your hand with your mouth wide open, your breath feels warm. But if you…

A: When we blow out air keeping your mouth wide open your hand feels hot because the air has the…

Q: When you use a hand pump to inflate the tires of your bicycle, the pump gets warm after a while.…

A: Solution:- Before proceeding to the answer let's see about the adiabatic process, as it plays a…

Q: During an all-night cram session, a student heats up a 0.786 liter (0.786 x 103 m³) glass (Pyrex)…

A: Given, Initial volume of coffee (V) = 0.786×10-3 m3  Initial temperature (Ti)= 18.7° C  Final…

Q: Water has a lower boiling point at higher elevations. As a result, it generally takes longer to…

A:

Q: Questions to think about: What pressure is present on the top of Mt. Everest? Greater or less than…

A: Given, Pressure and Temperature at Mt. Everest

Q: One of the reasons the first lightbulbs were expensive was due to the platinum electrical lead wires…

A: Lead wire and glass should have same coefficient of thermal expansion,if they have same coefficient…

Q: The highest point in Australia is the top of Mount Kosciuszko in New South Wales, 7,310 ft above sea…

A: Required : Pressure (psi) at the top of the Mount Kosciuszko.

Q: At the same temperature, which of the following gases will have the largest rate of diffusion? Ne Kr…

A: Diffusion of gas: When particles of gases move from the region where its concentration is higher to…

Q: to loosen the metal lid on a hard-to-open glass jar by running hot water over top of it for a few…

A: We know that here we have given the when we put the glass jar which has a metal lid which is hard to…

Q: As weather balloons rise from the earth's surface, the pressure of the atmosphere becomes less,…

A: As weather balloons ascend from the Earth's surface, the pressure of the atmosphere decreases,…

Q: Suppose you inflate your car tires to 35 psi on a 20°C day. Later, the temperature drops to 0°C.…

A:

Q: The highest point in Antarctica is the top of Mount Vinson in the Sentinel Range, 16,050 ft above…

A:

Q: Hot air balloons float because the air inside an inflatable compartment is heated. Consider such a…

A: Given that, the maximum volume of the balloon is V=2160m3 and the total mass of the basket and…

Q: At 27°C and 1 ATP, a volume of air abruptly shrank by half. Temperature and pressure must be…

A:

Q: The brass scale of a mercury barometer gives the correct length of the mercury column at 0°C. IF the…

A: L0 = 740 mm = 0.74 m Temperature , ∆T = 25°C  To find = reading when corrected for expansion of…

Q: The coefficient of volumetric expansion of mercury is 18×10-5/°C. The thermometer bulb has a volume…

A: A

Q: (a) At what temperature does water boil at an altitude of 1500 m (about 5000 ft) on a day when…

A: (a) According to the table of saturation vapor density of water, the temperature at which water…

Q: What is the coefficient of volume expansion for a material that has a coefficient of linear…

A: Given: The coefficient of the linear expansion is 1.5x10-5 /oC.

Q: The radius of an artery decreases from 1.2 to 0.50 cm due to atherosclerosis. If the average blood…

A:

Q: The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air…

A: The mass of a hot air balloon and its cargo m=200 kg the air outside is at a temperature-…

Q: Hot air balloons float because the air inside an inflatable compartment is heated. Consider such a…

A:

Q: One day you notice that the outside temperature increased by 17F° between your early morning jog and…

A: The change in temperature must be determined in degrees Celsius. The outdoor temperature difference…

Q: The volume of gas sample is increased. Why does the pressure which is exerted by gas decreases?

A: Boyle’s law states that “the pressure of a given mass of an ideal gas is inversely proportional to…

Q: The brass scale of a mercury barometer gives the correct length of the mercury column at 0°C. IF the…

A: We have the formula, ρ∘H∘g=ρtHtg…

Q: If you decrease the volume of a gas to 1/3 its original volume, how much bigger or smaller is the…

A: Write the given values of this problem.   Write the value for decrease the volume.   Let…

Q: On a cold windy day, a window will feel colder than on an equally cold day with no wind. This is…

A: Concept: The temperature of two systems is the same when the systems are in thermal equilibrium,…

Q: FIFA states that the air pressure of a regulation soccer ball must between 8.5psi and 15.6 psi.  An…

A: Scenario: Air regulation pressure of soccer ball is b/w 8.5 psi & 15.6 psi. All the soccer ball…

Q: *:When using ideal gas law (IGL).2 Both pressure and temperature must be gageO Both pressure and…

A: Solution

Q: During an all-night cram session, a student heats up a one-half liter (0.50 x 10-³ m²) glass (Pyrex)…

A: The solids and liquids and gases expand when they being heated. This thing is termed as Thermal…

Q: The gas having average speed four times as that of SO2 (molecular mass 64) is ___________ a)…

A: The average speed v¯ of a gas is given by, v¯ = 8RTπM where, R is the gas constant, T is the…

Q: Freeze-dried foods have been dehydrated in a vacuum. During the process, the food freezes and must…

A: Freeze-drying is the process by which food items are dehydrated inside a vacuum. The water inside…

Q: A bicycle tire has a pressure of 6.20 x 10 N/m? at a temperature of 20.0°C and contains 1.60 L of…

A: Pressure inside bicycle tire Pi = 6.20×105 N/m² Initial temperature of tire = final temperature of…

Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.