To measure the speed of a car, we use miles per hour (miles/hour or mi/h or mph)

Question

To measure the speed of a car, we use miles per hour (miles/hour or mi/h or mph). To measure the rate of a reaction we use molar concentration per second (M/s).

Part A

Imagine that you took a road trip. Based on the information in the table, what was the average speed of your car?

Express your answer to three significant figures and include the appropriate units. Use mi as an abbreviation for miles, and h for hours, or mph can be used to indicate miles per hour.

Part B

Now consider the following reaction and data:

H2+2ICl2HCl+I2

What is the average rate of formation of I2?

Express your answer to three decimal places and include the appropriate units.

Explanation / Answer

Average Velocity = Distance / time

D = 286-23 = 263 miles

time = 8-3 = 5 hours

V = 263/5 = 52.6 mi/h

B)

Apply same logic

so

Chance in concentration = 1.82-1.32 = 0.50 M

chang ein time = 15-5 = 10 s

so

dC/dt = 0.5/10 = 0.05 M/s

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