CHM120H5 Chapter Notes - Chapter 15: Haber Process, Reaction Rate, Desorption
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Spontaneity refers to in the inherent tendency for the process to occur, nothing abt speed. The time it takes for a reaction to occur is a measure of kinetic stability. The slower a reaction, the greater the kinetic stability. But these gases coexist indefinitely at 25 , diamond to graphite is spont. Reaction mechanism: series of steps by which a rxn place reaction rate: change in [] of a reactant or product per unit time, assumes volume is constant avg rate = [a]/ t , a is r or p. Work with positive rxn rates, rate of decomp= - [a]/ t instantaneous rate = -(slope of tangent line) rxn rate changes over time and may be diff for various p or r rate = -d[a]/dt = k[a]n. 15. 3: determining the form of the rate law. 15. 4: determining the form of the rate law usually rate of rxn is rate = -1/a*d[a]/dt, a is coefficient of a.
