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What can a graph show us about rate of reaction?
A graph can show us how the rate of reaction changes over time by plotting the concentration of reactants or products against time. The slope of the graph at a specific point represents the rate of reaction at that particular moment. The shape of the curve can also indicate the order of the reaction.
Is acceleration the slope of velocity vs time graph?
No, acceleration is the rate of change of velocity with respect to time. It is the derivative of the velocity function, not the slope of the velocity vs. time graph. The slope of the velocity vs. time graph represents the rate of change of velocity, not acceleration.
When giving the rate of a chemical reaction why would it be significant to know that the reaction rate is an average reaction rate?
Reaction rates are dependent on the concentration of reactants. As a reaction proceeds, the reactants are used up and thus their concentration is lowered. THis means that the maximum rate of reaction will be at or immediately after time zero, when the reaction is only just begun, and the minimum will be when one or more of the reactants' concentrations have reached zero. Thus, any rate stated for the reaction would only hold for a specific time in the reaction progress and cannot be extrapolated to cover all of that progress. So a mean rate of reaction must be used; this can tell a person, when combined with either the time of beginning, time of ending, or the initial concentrations, what any of the others were for the reaction in question. This is impossible to do if given a specific rate and the time it applied to; you cannot calculate any new information from just those two data.
What is a property of a reaction that has reached equilibrium?
the rate of the forward reaction is greater than the rate of the reverse reaction.
How is the rate of reaction affected when the temperature increases?
As the temperature increases, the reaction time decreases.
What can a graph show us about rate of reaction?
A graph can show us how the rate of reaction changes over time by plotting the concentration of reactants or products against time. The slope of the graph at a specific point represents the rate of reaction at that particular moment. The shape of the curve can also indicate the order of the reaction.
How can you tell from a graph when a reaction is finished?
In a graph of reaction progress versus time or concentration, a finished reaction typically shows a plateau where the values remain constant. This indicates that the reactants have been fully consumed and the products have reached equilibrium. The reaction rate becomes zero at this point.
How do you determine the rate constant k from a graph of the reaction kinetics?
To determine the rate constant k from a graph of reaction kinetics, you can use the slope of the line in a first-order reaction or the y-intercept in a second-order reaction. The rate constant k is typically calculated by analyzing the linear relationship between concentration and time in the reaction.
What is the order of a reaction if the graph is curve horizontal?
If the graph of a reaction's concentration versus time is a horizontal curve, it indicates that the concentration of the reactant is not changing over time, suggesting that the reaction has reached completion or is at equilibrium. This typically corresponds to a zero-order reaction, where the rate of reaction is constant and independent of the concentration of the reactants. In such cases, the rate remains constant until the reactants are depleted.
How can one calculate the initial rate of reaction from an experiment?
To calculate the initial rate of reaction from an experiment, you can plot a graph of the concentration of reactants against time and find the slope of the tangent line at the beginning of the reaction. This slope represents the initial rate of reaction.
How can one determine the initial rate of reaction from a table?
To determine the initial rate of reaction from a table, you can look at the change in concentration of reactants over time. By calculating the slope of the initial linear portion of the concentration vs. time graph, you can find the initial rate of reaction.
How can one determine the initial rate of a reaction?
The initial rate of a reaction can be determined by measuring the change in concentration of reactants or products over a short period of time at the beginning of the reaction. This can be done by plotting a graph of concentration versus time and calculating the slope of the line at the start of the reaction.
How do you change a time graph into a rate graph?
differentiate with respect to time.
How can one determine the rate constant from a graph?
To determine the rate constant from a graph, you can use the slope of the line in a first-order reaction plot. The rate constant is equal to the negative slope of the line, which can be calculated by dividing the change in concentration by the change in time.
How do you prove graphically that a reaction is first order?
To prove graphically that a reaction is first order, you would plot the natural log of the concentration of the reactant versus time. If the resulting graph is linear, then the reaction is first order. This linear relationship indicates that the rate of the reaction is directly proportional to the concentration of the reactant.
How do you calculate the rate of a chemical reaction?
The rate of a chemical reaction is typically calculated by measuring the change in concentration of a reactant or product over time. This can be determined by plotting a graph of concentration against time and calculating the slope to find the rate. Alternatively, you can use the rate equation derived from the experimental data to determine the rate constant.
How can one determine the initial rate of reaction in a chemical process?
The initial rate of reaction in a chemical process can be determined by measuring the change in concentration of reactants or products over a specific time period at the beginning of the reaction. This can be done by plotting a graph of concentration versus time and calculating the slope of the curve at the initial point. The initial rate is then determined from this slope.
