A cylinder with a movable piston contains 3 moles of hydrogen at standard temperature and pressure. The walls of the cylinder are made of a heat insulator, and the piston is insulated by having a pile of sand on it. By what factor does the pressure of the gas increase if the gas is compressed to half its original volume ?

What are standard temperature and pressure conditions? What is the volume of one mole of an ideal gas under these conditions?

What are standard temperature and pressure conditions? What is the volume of one mole of an ideal gas under these conditions?

Two cylinders A and B of equal capacity are connected to each other via a stopcock. A contains a gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following : (a) What is the final pressure of the gas in A and B ? (b) What is the change in internal energy of the gas ? (c) What is the change in the temperature of the gas ? (d) Do the intermediate states of the system (before settling to the final equilibrium state) lie on its P-V-T surface ?

A gas is contained in a metallic cylinder fitted with a piston. The piston is suddenly moved in to compress the gas and is maintained at this position. As time passes the pressure of the gas in the cylinder

Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains a gas at standard temperature T and pressure P.B is completely evacuated. The entire system is thermally insulated. The stop cock is thermally insulted. The stop cock is suddenly opened. The find pressure of the gas in A and B is