CHEMICAL reaction is expressed by Arrhenius equation as, \(k = A{e^{ - {E_a}/RT}}\) where, A = Arrhenius factor or frequency or pre-exponential factor,R = gas constant,Ea = Activation energy.Taking log on both SIDES of the Eq(i), the equation becomes ln k = ln A = \(\frac{{{E_a}}}{{RT}}\).On comparing with equation of straight line (y = mx + c), the NATURE of the plot of \({\rm{ln\;k\;VS\;}}\frac{1}{{{\rm{RT}}}}\) will be:(i) Intercept = C = ln A(II) Slope/gradient = m = -Ea = -y ⇒ Ea = y.So, the energy required to activate the reactant, (activation energy of the reaction, Ea is = y.

"> CHEMICAL reaction is expressed by Arrhenius equation as, \(k = A{e^{ - {E_a}/RT}}\) where, A = Arrhenius factor or frequency or pre-exponential factor,R = gas constant,Ea = Activation energy.Taking log on both SIDES of the Eq(i), the equation becomes ln k = ln A = \(\frac{{{E_a}}}{{RT}}\).On comparing with equation of straight line (y = mx + c), the NATURE of the plot of \({\rm{ln\;k\;VS\;}}\frac{1}{{{\rm{RT}}}}\) will be:(i) Intercept = C = ln A(II) Slope/gradient = m = -Ea = -y ⇒ Ea = y.So, the energy required to activate the reactant, (activation energy of the reaction, Ea is = y.

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If a reaction follows the Arrhenius equation, the plot ln k vs 1/(RT) gives straight line with a gradient (-y) unit. The energy required to activate the reactant is

Current Affairs Chemistry in Current Affairs . 5 months ago

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Concept:The temperature dependence of rate of CHEMICAL reaction is expressed by Arrhenius equation as, \(k = A{e^{ - {E_a}/RT}}\) where, A = Arrhenius factor or frequency or pre-exponential factor,R = gas constant,Ea = Activation energy.Taking log on both SIDES of the Eq(i), the equation becomes ln k = ln A = \(\frac{{{E_a}}}{{RT}}\).On comparing with equation of straight line (y = mx + c), the NATURE of the plot of \({\rm{ln\;k\;VS\;}}\frac{1}{{{\rm{RT}}}}\) will be:(i) Intercept = C = ln A(II) Slope/gradient = m = -Ea = -y ⇒ Ea = y.So, the energy required to activate the reactant, (activation energy of the reaction, Ea is = y.

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Posted on 19 Nov 2024, this text provides information on Current Affairs related to Chemistry in Current Affairs. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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