Negative 1/a
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Re: Negative 1/a
There is a negative sign because the concentration of the reactant decreases during the reaction.
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Re: Negative 1/a
Because the reactant is being consumed, the overall concentration of the reactant is decreasing so there is a negative rate of change. However, if the question asked at what rate was A being consumed, then it will be a positive answer. Just be careful about how the question is worded!
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Re: Negative 1/a
Since products is decreasing, the slope will be negative when you take the tangent to the curve. (that means that the slope of the products is positive because products is increasing)
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Re: Negative 1/a
Nisarg Shah 1C wrote:Because the reactant is being consumed, the overall concentration of the reactant is decreasing so there is a negative rate of change. However, if the question asked at what rate was A being consumed, then it will be a positive answer. Just be careful about how the question is worded!
Can you please further explain as to why the rate would be a positive answer if the question was worded differently?
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Re: Negative 1/a
For example, if the question asked "what is the rate of decomposition of reactant A" the rate would be positive, even though the concentration of A is decreasing.
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Re: Negative 1/a
Cristina Sarmiento 1E wrote:Nisarg Shah 1C wrote:Because the reactant is being consumed, the overall concentration of the reactant is decreasing so there is a negative rate of change. However, if the question asked at what rate was A being consumed, then it will be a positive answer. Just be careful about how the question is worded!
Can you please further explain as to why the rate would be a positive answer if the question was worded differently?
Since the word consumed is being used, then the negative rate of change is already being implied so the answer shouldn't have another negative.
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