The concentration of a solution having concentration 0.24M is reduced to 0.12M in 10 hours and 0.06M in 20 hours. What is the rate of the reaction?

For the reaction A rarr B , the concentration of a reactant changes from 0.03M to 0.02 M in 20 mins. Calculate the average rate of reaction. What is the rate of production of 'B' during this period?

In a first order reaction, the concentration of the reactant is reduced from 0.6moll^(-1) to 0.2moll^(-1) in 5 minutes. Calculate the rate constant of the reaction.

For the reaction R rarr P the concentration of a reactant changes from 0.03 M to 0.02 M in 25 minutes. Calculate the average rate of reaction using units of time both in minutes and seconds.

In a reaction 2A rarr P the Conc of A decreases from 0.5molL^(-1) to 0.4molL^(-1) in 10 sec. Calculate the rate of the reaction.

In a reaction, 2A rarr Products , the concentration of A decreases from 0.5 mol L^-1 to 0.4 mol L^-1 in 10 minutes. Calculate the rate during this interval?

The conductance of 0.1 M HCl solution is greater than that of 0.1 M NaCl. Why?

The concentration of hydrogen ion in a sample of soft drink is 3.8xx 10^(-3) M What its pH?

For a reaction 2A rarr 4B+C , the concentration of B is increased by 5.0xx10^(-3) molL^(-1) in 10 seconds. Calculate the rate of disappearance of A.

A uniform rope of length 12 m amd mass 6 kg hangs vertically from a rigid support.A block of mass 2 kg is attached to the free end of the rope.A transverse pulse of wave length 0.06m is produced at the lower end of the rope.What is the wavelength of the pulse when it reaches the top of the rope?

A steel wire of length 4.7 m and cross-sectional area 3.0 xx 10^- 5 m^2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 xx 10^-5 m^2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper?