A Chemical Reaction Begins When a Certain Mixture of Chemicals

question 34

Multiple Choice

A chemical reaction begins when a certain mixture of chemicals reaches 95°C. The reaction activity is measured in units (U) per 100 microliters (100µL) of the mixture. Measurements during the first 18 minutes after the mixture reaches 95°C are listed in Table below. Chemical Reaction The Logistic model for the above data is approximately given as .
Estimate the average rate of change of the reaction activity between 5 minutes and 15 minutes. Round your answer to three decimal places.

• A) 0.141
• B) 0.071
• C) 0.227
• D) 0.113
• E) 7.074

---

Definitions:

Compounded Annually

This refers to the process where interest is added to the principal sum, so that from that moment on, the interest that has been added also earns interest, being calculated and added to the account annually.

Simple Interest

Interest calculated on the principal amount of a loan or deposit, without compounding over time.

Savings Account

A deposit account held at a bank that provides interest on the funds deposited.

Lump Sum

An individual disbursement occurring at a certain point, in contrast to periodic payments carried out sequentially.