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True or False. Increasing the temperature of a reaction by two, decreases the activation energy by two.
At the same temperature, two reactions with equal activation energy have rates that differ by a factor of 5. Explain
Determine the ratio of the rate constants for the following reactions at 30 ºC.
A + B → C; Ea = 100 kJ/mol
X + Y → Z; Ea = 18 kJ/mol
Assume both reactions have the same pre-exponential factor.
Which reaction is expected to have the smallest orientation factor?
A) 2 HBr(g) → H2(g) + Br2(g)
B) H(g) + I(g) → HI(g)
C) O3(g) + H2O(l) ⟶ H2(g) + 2 O2(g)
D) NH3(g) + BCl3(g) → H3N-BCl3(g)
What generally occurs in a reaction if the temperature is decreased?
A) The rate constant and rate of reaction is unaffected.
B) The rate constant decreases, which results in a slower rate.
C) The rate constant increases, which results in a slower rate.
D) The rate constant decreases, which results in a faster rate.
E) The rate constant increases, which results in a faster rate.