Explain a graphical method to determine activation energy of a reaction.
The Arrhenius equation is given by
On taking logarithms of both sides, we get
`log_10k=-E_a/(2.303R) times (1/T)+log_10A`
The rate constant of a reaction is determined at various temperatures.
log10 k is plotted against the reciprocal of temperature. The graphical
The slope of the straight line graph is
from which the activation energy can be calculated.
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- Temperature Dependence of the Rate of a Reaction