[tex]\huge\fbox\pink{Question}[/tex]The time for half life period of a certain reaction A→products is 1 hour.When the initial conc

2 thoughts on “[tex]\huge\fbox\pink{Question}[/tex]The time for half life period of a certain reaction A→products is 1 hour.When the initial conc”

1. [tex]\huge\mathcal{\fcolorbox{cyan}{black}{\pink{Question ࿐}}}[/tex]

   The time for half life period of a certain reaction A→products is 1 hour.When the initial concentration of the reactant ‘A’ is 2 mol/litre,how much time does it take for its concentration to come from 0.50 to 0.25 mol/litre if it is zero order reaction?

   [tex]\huge\mathcal{\fcolorbox{cyan}{black}{\pink{answer ࿐}}}[/tex]

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2. [tex]\huge\fbox\pink{Answer}[/tex]

   ★0.25 hr

   Given

   • The time for half life period of a certain reaction A→products is 1 hour.

   To find

   • When the initial concentration of the reactant ‘A’ is 2 mol/litre,how much time does it take for its concentration to come from 0.50 to 0.25 mol/litre if it is zero order reaction?

   Solution

   ★For a zero order reaction

   [tex]k = \frac{x}{t} – – – – – – – eq(1)[/tex]

   ★Where

   • X = amount decomposed
   • k = zero order rate constant

   ★For a zero order reaction

   [tex]k = \frac{[A] _{0}}{2t_{ \frac{1}{2} }} [/tex]

   [tex]since \: \\ = > [A] _{0} = 2M \: \\ = > t _{ \frac{1}{2} } = 1hr \\ = > k = 1[/tex]

   ★From eq(1)

   [tex]t = \frac{0.25}{1} = 0.25hr[/tex]

   [tex]{\huge{\blue{\texttt{\orange T\red h\green a\pink n\blue k\purple s\red}}}}[/tex]

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