7. A catalyst increases the rate of a reaction because a) provides another reaction pathway with lower activation energy than the original b) is a medium where reactants move more easily c) the temperature increases and this favors chemical reactions d) allows more molecules to collide with each other
7. A catalyst increases the rate of a reaction because a) provides another reaction pathway with lower activation energy than the original b) is a medium where reactants move more easily c) the temperature increases and this favors chemical reactions d) allows more molecules to collide with each other
ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction
Section: Chapter Questions
Problem 16STP
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7. A catalyst increases the
a) provides another reaction pathway with lower activation energy than the original
b) is a medium where reactants move more easily
c) the temperature increases and this favors
d) allows more molecules to collide with each other
8. Mass transfer of a substance A
a) is independent of temperature
b) is independent of the velocity of the fluids
c) increases with the viscosity of the medium in which it is found
d) increases with transfer area
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