The Reaction 2NO(g)+ O₂(g) 2NO₂(g)has H_r =

question 52

Multiple Choice

The reaction 2NO(g) + O₂(g)  2NO₂(g) has H_r = 114 kJmol^1.A possible mechanism for this reaction is 2NO(g) N₂O₂(g)
Rapid equilibrium,K
N₂O₂(g) + O₂(g)  2NO₂(g)
Slow,k
If the activation energy for the reverse reaction is 225 kJmol^1,what is the activation energy for the forward reaction?

• A)Because an intermediate is involved, the forward activation energy cannot be calculated with the given information.
• B)111 kJ  mol ^{ 1}
• C)339 kJ  mol ^{ 1}
• D)114 kJ  mol ^{ 1}
• E)55.5 kJ  mol ^{ 1}

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Definitions:

Cash Equivalents

Short-term, highly liquid investments that are readily convertible to known amounts of cash and close to their maturity.

Basis of Measurement

The specific basis chosen to measure various types of assets, liabilities, income, and expenses, such as historical cost, fair value, and amortized cost.

Accrual

An accounting method that records revenues and expenses when they are incurred, regardless of when cash transactions occur.

Net Cash Inflow

The difference between all cash received and all cash spent by a company during a specific period.