A weather balloon filled with hydrogen at 1 atm and 300K has volume equal to 12000 litres. On ascending it reaches a place where temperature is 250K and pressure is 0.5atm. The volume of the balloon is:

A weather balloon filled with hydrogen at 1 atm and 27^(@)C has volume equal to 1200 litres. On ascending, it reaches a place where temperture is -23^(@)C and pressure is 0.5 atm. The volume of the balloon is

A weather balloon filled with hydrogen at 1 atm and 27^(@)C has volume equal to 1200 litres. On ascending, it reaches a place where temperture is -23^(@)C and pressure is 0.5 atm. The volume of the balloon is

A weather balloon filled with hydrogen gas at 1 atm and 27^(@)C has volume equal to 12000 litres. On ascending , it reaches a place where temperature is -23^(@)C and pressure 0.5 atm. The volume of the balloon is :

A weather balloon filled with hydrogen at 1 atm and 27^(@)C has volume equal to 12000 litres. On ascending, it reaches a place where the temperature is - 23^(@)C and pressure is 0.5 atm. The volume of the balloon is "___________"

A weather balloon has a volume of 175 L when filled with hydrogen at a pressure of 1.000 atm. Calculate the volume of the balloon when it rises to a height of 2000 m, where atmospheric pressure is 0.8000 atm. Assume that temperature is constant.

Balloons of 4L capacity are to be filled with Hydrogen at a pressure of 1 atm and 27^@C from an 8L cylinder containing Hydrogen at 10 atm at the same temperature. The number of balloons that can be filled is