Chemical Kineti...

Decomposition of $${ H }_{ 2 }{ O }_{ 2 }$$ is a first order reaction. A $$16$$ volume solution of $${ H }_{ 2 }{ O }_{ 2 }$$ of half life $$30$$ min is present at start. When will the solution become one volume?

For a 1st order reaction of the form, $$A\xrightarrow [  ]{ \quad k \quad  } B$$, the correct representations are:

The time for half-life period of a certain reaction, $$A\rightarrow $$ Product, is $$1$$ hour, when the initial concentration of the reactant '$$A$$' is $$2$$ $$mol$$ $${ L }^{ -1 }$$. How much time does it take for its concentration to come from $$0.50$$ to $$0.25$$ $$mol$$ $${ L }^{ -1 }$$ if it is a zero order reaction?

In the reaction, $$A+B\longrightarrow C+D$$, the rate $$\left( \dfrac { dx }{ dt }  \right) $$ when plotted against time '$$t$$' gives a straight line parallel to time axis and at some time $$'t'$$, $$\dfrac{dx}{dt}=k$$. The order and rate of reaction will be:

The reaction, $$A\xrightarrow {  \quad k \quad  } $$ Product, is zero order while the reaction, $$B\xrightarrow {  \quad k\quad } $$ Product, is first order reaction. For what initial concentration of $$A$$ are the half lives of the two reactions equal?

Consider following two competing first order reactions:
$$P\xrightarrow [  ]{ \quad { k }_{ 1 }\quad  } A+B;$$  $$Q\xrightarrow [  ]{ \quad { k }_{ 2 }\quad  } C+D$$
If $$50$$% of the reaction of $$P$$ was completed when $$96$$% of $$Q$$ was completed, then the ratio $$\left( { { k }_{ 2 } }/{ { k }_{ 1 } } \right) $$ will be:

Which of the following graphs is correct for the following reaction?
$$C{ H }_{ 3 }-C{ H }_{ 2 }-CH=C{ H }_{ 2 }\xrightarrow [ { 300 }^{ o }C ]{ \quad { { H }_{ 2 } }/{ Ni }\quad  } C{ H }_{ 3 }-C{ H }_{ 2 }-C{ H }_{ 2 }-C{ H }_{ 3 }$$

For a first-order reaction, $$A\longrightarrow $$ Products, the concentration of $$A$$ changes from $$0.1\ M$$ to $$0.025\ M$$ in $$40$$ minutes. The rate of reaction when the concentration of $$A$$ is $$0.01\ M$$, is:

The rate of a reaction at $$10$$ sec intervals are as follows:

The half-life period of a first order process is $$1.6$$min. It will be $$90\%$$ complete in :