Chemical Kineti...

For a particular gaseous reaction a graph was plotted as shown. It shows that the reaction of $$A$$ is

For a first order reaction, $${\text{A}} \to {\text{P,}}{{\text{t}}_{{\text{1/2}}}}\left( {{\text{half -}}\,{\text{life}}} \right)$$  is $$10$$ days. The time required for $$\dfrac{1}{4}^{th}$$ conversion of $$A$$(in days) is : $$\left( {{\text{ln}}\,{\text{2 = 0}}{\text{.693,  ln}}\,{\text{3 = 1}}{\text{.1}}} \right)$$

Out of $$300$$g substance [decomposes as per $$1^{st}$$ order], how much will remain after $$18$$ hr?
$$(t_{0.5}=3\, hr)$$

Activation energy of the forward reaction is ___________ kcal.

According to the Arrhenius equation, 

For a gaseous equilibrium : $$2A(g)\rightleftharpoons 2B(g)+C(g)$$  $$K_{p}$$  has a value 1.8 at 700 K.  The value of $$K_{c}$$  for the equilibrium : $$2B(g+C(g)\rightleftharpoons 2A(g)$$  at that temperature is about  _________.

In the following first order competing reaction:
A+Reagent $$\longrightarrow$$ Product B+Reagent $$\longrightarrow$$ Product
The ratio of $${ K }_{ 1 }/{ K }_{ 2 }$$ if only 50% of B will have been reacted when 94% of A has been reacted is:

Decomposition of HI (g) on Gold surface is zero order reaction.Initially few moles of $$H_2$$ are present in container then which of the following graph is correct?

$$A\rightarrow B$$ first order reaction $$A$$ is optical active and $$B$$ is optically inactive, a series of experiment were conducted on a solution of $$A$$

Time	0	60 min	$$\infty$$
optical rotation	$${82}^{o}$$	$${77}^{o}$$	$${2}^{o}$$

Assume some impurity present calculate the optical rotation after $$5$$ hours
(Given in $$1.066=0.064,{e}^{0.16}=1.17$$)

For an exothermic reaction $$Ea, Ea^{'} $$ are the activation energies of the forward and backward reactions respectively. Then which is always false: