Friday, March 12, 2010

stressor

In chemistry, a stressor is something that either speeds up a reaction rate or keeps the reaction rate the same. Stressors include light, temperature and elevated sound levels. Stressors also include the phenomena of substance concentration (does not shift equilibrium), catalysis, substance surface area (speeds up the reaction rate), and the nature of the reactants.

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talk nineteen to the dozen

  to speak rapidly and without stopping