Based on activation energies and energy changes and assuming that all collision

Question

Based on activation energies and energy changes and assuming that all collision factors are the same, answer the following questions:

1) Which of the following reactions would be fastest in the forward direction?
A) Ea = 45 kJ/mol; DE = -25 kJ/mol
B) Ea = 35 kJ/mol; DE = -10 kJ/mol
C) Ea = 55 kJ/mol; DE = 10 kJ/mol
D) Ea = 65 kJ/mol; DE = 25 kJ/mol

2) Which of the following reactions would be slowest in the forward direction?
A) Ea = 45 kJ/mol; DE = -25 kJ/mol
B) Ea = 35 kJ/mol; DE = -10 kJ/mol
C) Ea = 55 kJ/mol; DE = 10 kJ/mol
D) Ea = 65 kJ/mol; DE = 25 kJ/mol

3) Which of the following reactions would be fastest in the reverse direction?
A) Ea = 45 kJ/mol; DE = -25 kJ/mol
B) Ea = 35 kJ/mol; DE = -10 kJ/mol
C) Ea = 55 kJ/mol; DE = 10 kJ/mol
D) Ea = 65 kJ/mol; DE = 25 kJ/mol

4) Which of the following reactions would be slowest in the reverse direction?
A) Ea = 45 kJ/mol; DE = -25 kJ/mol
B) Ea = 35 kJ/mol; DE = -10 kJ/mol
C) Ea = 55 kJ/mol; DE = 10 kJ/mol
D) Ea = 65 kJ/mol; DE = 25 kJ/mol

Explanation / Answer

1. B C 2. A C 3. A D 4. B C

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