When an inflated ballon is suddenly burst,why is the emerging air slightly cooled?

A tyre pumped to a pressure of 3.375 atmosphere and at 27^@C suddenly bursts . Calculate the temperature of escaping air . (y = 1.5)

Why does a balloon burstssometimes when we are trying to fill air inside?

Air is filled in a motor tube at 27^@C and at a pressure of 8 atmosphere . The tube suddenly bursts, then temperature of air is

A vibrating string of certain length l under a tension T resonates with a mode corresponding to the first overtone (third harmonic) of an air column of length 75cm inside a tube closed at one end. The string also generates 4 beats per second when excited along with a tuning fork of frequency n . Now when the tension of the string is slightly increased the number of beats reduces 2 per second. Assuming the velocity of sound in air to be 340 m//s , the frequency n of the tuning fork in Hz is

Why does a paramagnetic sample display greater magnetisation (for the same magnetising field) when cooled ?

Take a plastic boat and make a hole at this rear end. Inflate a balloon and fix it on the hole in the boat. Release the boat in water. What happens to the boat as the air in the balloon escapes slowly? Why?

An office room contains about 2000 moles of air. The change in the internal energy of this much air when it is cooled from 34 °C to 24 °C at a constant pressure of 1.0 atm is ( Use gamma_("air")=1.4 and universal gas constant=8.314 J/mol K)

When a piece of ice is placed in water at room temperatur, ice melts and water cools down. Why does their temperture change?

Metals get attacked by substances around it such as moisture, acids, etc. Metal is said to 'corrode' due to this attack and the process is called corrosion. Many metals like iron, copper, silver, etc. get corroded. When iron is exposed to moist air, it undergoes corrosion and a reddish brown coloured solid layer is formed on its surface. Corrosion of iron, which is known as rusting, is a serious problem as enormous amount of money is spent every year to replace damaged iron. Similarly, copper reacts with moisture and. CO_(2) in air to form a green coloured coating of basic copper carbonate on its surface. Silver acquires a black colour when exposed to air containing H_(2)S due to the formation of silver sulphide on its surface. Based on the above paragraph, answer the following question. Why do we apply paint on iron articles?

Pay load is defined as the difference between the mass of displaced air and the mass of the ballon. Calculate the pay load when a ballon of radius 10m, mass 100kg is filled with helium at 1.66 bar at 27^@C (Destiy of air = 1.2 kg m^(-3) and R=0.083 bar dm^3 K^-1 mol^-1 .