From a certain apparatus,the diffusion rate of hydrogen has an average value of `28.7 cm^3s^(-1)`.The diffusion of another gas under the same conditions is measured to have an average rate of `7.2 cm^3s^(-1)`.Identify the gas.

The diagonal of a square is changing at the rate of 0.5cm s^-1 . Then the rate of change of area, when the area is 400 cm^2 is equal to

The radius of an air bubble is increasing at the rate of 1/2 cm / s. At what rate is the volume of the bubble increasing when the radius is 1 cm ?

Sand is pouring from a pipe. The falling sand forms a Cone on the ground in such a way that the height of the Cone is always one-sixth of the radius of the base. if the sand is pouring at the rate of 12 cm^3 /s ,Find the rate of change of height of the Cone.

The radius of an air bubble is increasing at the rate of 1/2cm//s . At what rate is the volume of the bubble increasing when the radius is 1 cm?

The specific reaction rate of a reaction is 6.2 x10^(-3) (mol) (L)^(-1) (s)^(-1) . What is the order of the reaction?

The rate constant of a reaction at 298 K is given by 3.2xx10^(-3)s^(-1) .Find the order of reaction?

A first order reaction has a rate constant 1.15xx10^(-3)s^(-1) . How long will 5 g of this reactant take to reduce to 3 g?

When a sample of gas is compressed at constant temperature from 15 atm to 60atm, its volume changes from 76 cm^3 to 20.50 m^3 . Which of the following statements are possible explanations of this behaviour. 1. The gas behaves non-ideally 2. The gas dimerises 3. The gas is adsorbed into the vessel walls