In troposphere (the weather domain), the temperature ' t ' at height ' h ' above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be

An equation for calculating vapour pressure is given by, log 10 P = A - B(t + c). This is called the

1 kg/m 2 is equal to __________ mm water column.

For a neutral solution (pH = 7), the value of[H + ] [OH - ] is equal to

Giga' stands for

One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m 3 . It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m 3 . The latent heat of condensation (kJ/kg -1 ) under these conditions is

For a given mass of a gas at constant temperature, if the volume ' V ' becomes three times, then the pressure ' P ' will become

1 kg/cm 2 is equal to

What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively ?