Rate Equations

• Who is the presenter of the AQA rate equations video?

  Chris Harris
• What is the target audience for the AQA rate equations video?

  AQA A level chemistry students
• What does the video promise to provide for AQA chemistry students?

  Everything needed to know about rate equations
• What type of resources does the video claim to avoid?

  Generic information not specific to AQA
• What additional resources are mentioned in the video for AQA chemistry students?

  Whiteboard tutorials and exam walkthroughs
• What does the presenter ask viewers to do to support the channel?


  Hit the subscribe button
• What is the purpose of the PowerPoint slides mentioned in the video?

  To aid in revision and provide information
• What is the main topic discussed in the video?

  Rate equations
• How is the rate of reaction measured according to the video?

  By plotting graphs of results
• How can the rate of reaction be calculated from a graph?

  By finding the gradient of the graph
• What does the gradient of a graph represent in the context of rate equations?

  The rate of reaction
• What are the axes labeled in the rate graph discussed?

  Volume of gas produced and time
• What is the formula for calculating the gradient of a graph?

  Change in Y over change in X
• What is the recommended size for a graph on graph paper?

  At least half the graph paper
• What is a tangent in the context of a curved graph?

  A line that meets the curve at a point
• How do you find the rate of reaction at a specific point on a curve?

  By drawing a tangent at that point
• What is the unit for rate of reaction as mentioned in the video?

  Moles per decimeter cubed per second
• What does a zero order reaction imply about concentration changes?

  No effect on the rate of reaction
• What does a first order reaction imply about concentration changes?

  Rate is proportional to concentration changes
• What does a second order reaction imply about concentration changes?

  Rate changes with the square of concentration
• How can the rate constant K be affected?

  It is temperature dependent
• What happens to the rate constant K when temperature increases?

  K increases with temperature increase
• How do you calculate the rate of reaction using the rate equation?

  By substituting concentrations into the equation
• What is the significance of knowing the order of a reaction?

  It helps predict how concentration affects rate
• How do you write the rate expression for a reaction?

  By identifying the orders of reactants
• How do you calculate the rate constant K from the rate expression?

  By rearranging the rate equation
• Why do carbon monoxide and oxygen not appear in the rate expression?

  They are zero order and have no effect
• How do you determine the order of a reaction?

  By conducting experiments and analyzing data
• What is the relationship between temperature and reaction rate?

  Higher temperature increases reaction rate
• How does the rate constant K relate to the speed of a reaction?

  A higher K indicates a faster reaction
• How do you substitute values into the rate equation?

  By using the concentrations and K value
• What does the term "orders of reaction" refer to?

  The power to which concentration is raised
• Why is it important to determine the order of a reaction experimentally?

  It cannot be determined from the equation alone
• What is the general form of a rate equation?

  Rate = K [A]^m [B]^n
• What does a first-order reaction imply about concentration changes?

  Rate changes directly with concentration changes
• How does the rate of a second-order reaction change with concentration?

  Rate changes with the square of concentration
• What is the effect of doubling the concentration in a zero-order reaction?

  No effect on the rate of reaction
• What is the significance of the rate constant K in a reaction?

  It links rate and concentration together
• How do you calculate the rate of reaction given concentrations and K?

  By substituting values into the rate equation
• What happens to the rate constant K if the temperature decreases?

  K decreases with temperature decrease