A cycle tube has volume `2000 cm^(3)`. Initially the tube is filled to `((3)/(4))^(th)` of its colume by air at pressure of `10^(5) N//m^(2)` under isothermal conditions. The number of strokes of pump, which gives `500 cm^(3)` air in each stroke, to infalte the tube is

Tyre of a bicycle has voulme 2xx10^(-3)m^(3) Initially the tube is filled to 75% of its volume by air at atmospheric pressure of P_(0)=10^(5)N//m^(2) . When a rider rides the bicycle the area of contact of tyre with road is A=24xx10^(-5)m^(2) . The mass of rider with bicycle is 120kg. The number of stokes which delivers, V=500cm^(3) volume of air in each stroke required to infalte the tyres is [Take g=m//s^(2) ]

An electron tube was sealed off during manufacture at a pressure of 1.2xx10^(-7) mm of mercury at 27^(@)C. Its volume is 100 cm^(3) . The number of molecules that remain in the tube is

An electron tube was sealed off during manufacture at a pressure of 1.2xx10^(-7) mm of mercury at 27^(@)C. Its volume is 100 cm^(3) . The number of molecules that remain in the tube is

An electronic vacuum tube was sealed off during an experiment at a pressure of 8.2 xx 10^(-10) atm at 27^(@)C . The volume of the tube was 30 dm^(3) . The number of gas molecules remaining in the tube are :

At a pressure of 3 atm air (treated as an ideal gas) is pumped into the tubes of a cycle rickshaw. The volume of each tube at given pressure is 0.004 m^(3) . One of the tubes gets punctured and the volume of the tube reduces to 0.0008 m^(3) . Find the number of moles of air that have leaked out? Assume that the temperature remains constant at 300K. (R = 25//3J mol^(-1)K^(-1))