Instantaneous Rate : What It Is, How to Calculate It, and Real-World Uses

The video tutorial explains the concept of reaction rate, focusing on calculating the instantaneous rate at a specific time. It demonstrates how to draw a tangent to a curve on a graph to find the rate at 30 seconds. The example provided involves calculating the change in concentration of a substance over time, resulting in an instantaneous rate of -0.01 mole per second.

What does the rate of reaction refer to in the context of a graph?

• The highest point on the graph

• The initial concentration of reactants

• The total area under the curve

• The slope of the tangent at a specific point

How is the instantaneous rate of reaction determined at a specific time?

• By finding the maximum concentration of products

• By measuring the total reaction time

• By drawing a tangent to the curve at that time

• By calculating the average rate over the entire reaction

What is the change in concentration of A used in the calculation at 30 seconds?

• 0.9 molar

• 0.3 molar

• 1.0 molar

• 0.6 molar

What is the time change used in the calculation of the instantaneous rate at 30 seconds?

• 60 seconds

• 120 seconds

• 30 seconds

• 90 seconds

What is the instantaneous rate of reaction at 30 seconds?

• -0.02 mole per second

• 0.01 mole per second

• -0.01 mole per second

• 0.02 mole per second