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<p>to calculate <a href="page.php?w=reaction_rate_constant">reaction rate constant</a>s in the <a href="page.php?w=transition_state_theory">transition state theory</a> in 1935.</p>

<p><big>H + H<sub>2</sub> two-dimensional PES</big></p>
<p>Potential energy surfaces are commonly shown as three-dimensional graphs, but they can also be represented by two-dimensional graphs, in which the advancement of the reaction is plotted by the use of isoenergetic lines.The collinear system H + H<sub>2</sub> is a simple reaction that allows a two-dimension PES to be plotted</p><p>
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