tial has little effect on its rate. The rate of this reaction verall rate of for

Question

tial has little effect on its rate. The rate of this reaction verall rate of formation of H2. The result is kinetic ization. The Nernst equation does not apply. overvoltage can be related to various factors that zation. Some are empirical in nature. de composition - significant for soft metal electrod Zn, Pb, Hg(1) de reaction - more pronounced for gas electrode re ble for M/M+ and M/MH Pt electrodes ature - less of a factor at higher temperature area of electrode -less of a factor for larger su rxn rates to temperactu en current not typically related to the fundamental princi ysis. However, it may sometimes inhibit inter e of interest

Explanation / Answer

You have provided only part of the question and its difficult to understand what you really want. But whatever little I could figure out from the question is that you want to know what the sign ? means.

The sign ? denotes proportionality; infact, direct proportionality. Proportionality simply means that the rate of a reaction is related to the temperature of the reaction via linear relationship of the type

R = k*T where R = reaction rate and T = temperature of the reaction. k is the constant of proportionality.

The rate of a reaction increases with increase in temperature and decreases with a fall in temperature. That is how a directly proportional pair of variables work.

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