Consider the following reaction mechanism. Step 1: 2X+Y W+2 Z fast Step 2: Z- U+V slow Step 3: V +Z 2 W + Y fast The rate-limiting step is Step because O 2; it is the slowest step 1; the first step must occur before any others can occur O 3; the last step is always the rate-limiting step O 2; it uses a product of the first step Consider the hypothetical reaction: A + 5 B + 3 C-D+ 2E+ 4 F. Which of the reagents will undergo the highest rate of loss in concentration? O D O B O A Similar to the standard enthalpy of formation, the absolute molar entropy (S') of a pure element in its standard state is zero. Select one: O True O False

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Chapter1: Chemical Foundations
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Consider the following reaction mechanism.
Step 1:
2 X + Y W+ 2 Z
fast
Step 2:
Z U+V
slow
Step 3:
V +Z 2 W + Y
fast
The rate-limiting step is Step.
because
O 2; it is the slowest step
1; the first step must occur before any others can occur
O 3; the last step is always the rate-limiting step
O 2; it uses a product of the first step
Consider the hypothetical reaction: A + 5 B + 3 C D + 2 E+ 4 F. Which of the reagents will undergo the highest rate of loss in concentration?
O D
Ов
ос
ОА
Similar to the standard enthalpy of formation, the absolute molar entropy (S) of a pure element in its standard state is zero.
Select one:
O True
O False
Transcribed Image Text:Consider the following reaction mechanism. Step 1: 2 X + Y W+ 2 Z fast Step 2: Z U+V slow Step 3: V +Z 2 W + Y fast The rate-limiting step is Step. because O 2; it is the slowest step 1; the first step must occur before any others can occur O 3; the last step is always the rate-limiting step O 2; it uses a product of the first step Consider the hypothetical reaction: A + 5 B + 3 C D + 2 E+ 4 F. Which of the reagents will undergo the highest rate of loss in concentration? O D Ов ос ОА Similar to the standard enthalpy of formation, the absolute molar entropy (S) of a pure element in its standard state is zero. Select one: O True O False
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