Chemical Kineti...

The initial rate of zero-order reaction of the gaseous equation $$A$$ (g) $$\rightarrow$$ $$2B$$ (g) is 10$$^{-2}$$ M min$$^{-1}$$ if the initial concentration of $$A$$ is 0.1 M. What would be a concentration of $$B$$ after $$60$$ seconds?

A certain substance A is mixed with an equimolar quantity of substance B. At the end of an hour, A is 75% reacted. Calculate the time when A is 10% unreacted. (Given: order of reaction is zero)

A metal slowly forms an oxide film which completely protects the metal when the film thickness is 3.956 thousandths of an inch. If the film thickness is 1.281 thou. in 6 weeks, then the time it will take before it is 2.481 thou. is :(the rate of film formation follows first-order kinetics)

The rate constant for disappearance of reactant as mentioned in is $$\displaystyle 2 \times 10^{-2} mol L^{-1} sec^{-1}$$, if the concentration of the reactant after 25 sec is 0.25M, the initial concentration is:

For a reversible first - order reaction $$A\rightleftharpoons B K_{1}=10^{-2}s^{-1}$$ and $$[B]_{eq}=4$$. If $$[A]_{0}=0.01$$ mole $$L^{-1} $$ and $$ [B]_{0}=0$$, what will be the concentration of B after 30 s?

In this case, we have (Consider it as a first-order reaction)
                    $$A\rightarrow B+C$$
Time                  $$t$$                 $$\infty $$
Total pressure  $$ p_{2}$$          $$             \ \ \:\:\:\:p_{3}$$
Then $$k$$ is:

$$\displaystyle SO _{2}Cl _{2}(g)\rightarrow SO_{2}(g)$$ 

A vessel contains dimethy 1 ether at a pressure of 0.4 atm. Dimethyl ether decomposes as $$ CH_{3}OCH_{3}(g)\rightarrow CH_{4}(g)+CO(g)+H_{2}(g).$$ The rate constant of decomposition is $$4.78\times10^{-3}min.$$ The ratio of initial rate of diffusion after 4.5 hours of initiation of decomposition is: