Nitrogen Dioxide Decomposes at 300 °C Via a Second-Order Process

question 105

Multiple Choice

Nitrogen dioxide decomposes at 300 °C via a second-order process to produce nitrogen monoxide and oxygen according to the following chemical equation:
2 NO₂(g) → 2 NO(g) + O₂(g) .
A sample of NO₂(g) is initially placed in a 2.50 L reaction vessel at 300 °C.If the half-life and the rate constant at 300 °C are 11 seconds and 0.54 L mol^-1 s^-1,respectively,how many moles of NO₂ were in the original sample?

• A)0.17 mol
• B)0.42 mol
• C)5.9 mol
• D)15 mol

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Definitions:

Discount Rate

The interest rate used in discounted cash flow (DCF) analysis to determine the present value of future cash flows.

Stated Rate

The interest rate expressed in the terms of a loan or bond agreement, not necessarily reflecting the effective interest rate after considering fees or compounding.

Market Rate

The prevailing interest rate available in the marketplace on investments or loans, subject to fluctuation based on supply and demand.

Effective Yield

A measure of the return on an investment, accounting for the effects of compounding interest over a specified period.