What will be pressure required to compress `500 dm^3` of air at 1 bar to `200 dm^3 at 30^@C`.

Find the pressure required to compress a gas adiabatically at atmospheric pressure to one fifth of.its volume. Given square= 1.4,log_e 5 = 0.6990 .

A vessel of 100 ml capacity contains a gas at 30^@C at 1.5 bar pressure . The gas is transferred to another vessel of volume 150 ml at 30^@C What would be its pressure?

What is the pressure inside the drop of mercury of radius 3.00 mm at room temperature? Surface tension of mercury at that temperature (20^@C) is 4.65 xx 10^-1 N m^-1 . The atmospheric pressure is 1.01 xx10^-5 Pa. Also give the excess pressure inside the drop.

Show that time required for completion 3/4 th of a first order reaction is twice the time required for completion of 1/2 of the reaction.

The partial pressure of ethane over a solution containing 6.56xx10^-3 g of ethane is 1 bar. If the solution contains 5.00xx10^-2 g of ethane, then what shall be the partial pressure of the gas?

Prove that the pressure exerted by an ideal gas given by P=1/3 rhov^2 .

Answer the following questions based on the P-T phase diagram of CO_2 : (a) CO_2 at 1 atm pressure and temperature - 60 ^@C is compressed isothermally. Does it go through a liquid phase?

How many moles of electron will be required for the reduction of 1 mole of Cr_2O_7^(2-) ions to Cr^(3+)

In a test experiment pn a model aeroplane in a wind tunnel, the flow speeds on the upper and lower surfaces of the wing are 70 m s^-1 and 63 m s^-1 respectively. What is the lift on the wing if its area is 2.5 m^2 ? Take the density of air to be 1.3 kg m^-3 .

What concentration of nitrogen should be present in a glass of water at room temperature at 25^@C , a total pressure of 1 atm and mole fraction on nitrogen in air of 0.78 [ K_H for nitrogen = 8.42xx10^(-7)M//mmHg ].