I Am Performing a Reaction, a → B, with Δ

question 18

Multiple Choice

I am performing a reaction, A → B, with Δ G ° ' = − 5000 kJ\mol. I start the reaction with 10 mM A and no B. After allowing the reaction to proceed for 24 hrs at room temperature and atmospheric pressure, I analyze a sample of the reaction mix to find I now have 8 mM A and 2 mM B. Which of the following conclusions should I make?

• A) The reaction has reached equilibrium.
• B) I should come back again later; equilibrium has not yet been reached.
• C) The formation of B from A is thermodynamically unfavorable, so I should find another starting material to make B.
• D) I must've screwed up; there's no way I could get that result with that Δ G ° '

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Definitions:

Accounts Payable Period

The average time it takes for a business to pay off its suppliers after receiving goods or services, reflecting on the company's cash management efficiency.

Average Collection Period

The typical time frame for a company to receive dues from its clients for goods or services offered on credit.

Operating Cycle

The duration of time it takes for a company to buy inventory, sell it, and convert the sale into cash.