Chemical Kineti...

Following reaction are of first order 
$$A\xrightarrow [  ]{ { k }_{ 1 }=2{ sec }^{ -1 } } 2B$$
$$A\xrightarrow [  ]{ { k }_{ 2 }=5{ sec }^{ -1 } } 3C$$
Which of the following statement $$(s)$$ is/are correct?

For the reaction system:
$$2NO(g)+O_2(g)\rightarrow 2NO_2(g)$$, volume is suddenly reduced to half its value by increasing the pressure on it. If the reaction is of first order with respect to $$O_2$$ and second order with respect to $$NO$$, the rate of reaction will:

Which is correct about zero order reaction?

The activation energy of a reaction is $$94.14$$ kj/mole, and the value of rate constant at $$313$$K is $$1.8\times 10^{-1}sec^{-1}$$. Calculate the frequency factor A.

Find the two third life $$(t_{2/3})$$ of a first order reaction in which $$K=5.48\times 10^{-14}sec^{-1}$$.

What is the activation energy of a reaction if its rate doubles when temperatures is raised from $$20^o$$C to $$35^o$$C?(R$$=8.314$$ J$$K^{-1}$$ $$mol^{-1}$$)

The rate constant for the decomposition of a hydrocarbon is $$2.418\times 10^{-5}S^{-1}$$ at $$546$$ K. If the energy of activation is $$179.9$$ kJ/mol. What will be the value of pre-exponential factor A?

The activation energy for a certain reaction is $$334.4 kJ mol^{-1}$$. How many times larger is the rate constant at $$610$$ K than the rate constant at $$600$$ K?

What is the activation energy for a reaction whose rate constant doubles when temperature changes from $$30^oC$$ to $$40^oC$$?

Which one of is first order reaction ?