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probablyacommunist
probablyacommunist
24.09.2021 • 
Chemistry

Question Student A obtained some data and found the slope of the Pressure versus Temperature to be 0.00344 and the pressure intercept to be -0.01533.

Student B asked "What are the units of the slope of the linear graph? What are the units of the pressure-intercept?"

Student A responded, "The units of the slope is atm/K. Remember, slope is "rise over run": the change in gas pressure, in atm, divided by the change in gas temperature, measured in kelvin. If the left-hand side of the linear equation is pressure, measured in atm, then, the term containing the slope of the plot must also be atm. The unit of measurement that multiplied by the temperature, in K, produces atm is atm/K; that is, atm = (atm/K) * K. The units of the pressure-intercept must be atm

Do you agree or disagree with Student A?

I agree with Student A's explanation of the reasoning behind the units of the slope of the plot.
I agree with Student A's explanation of the reasoning behind the units of the slope of the plot.

I disagree with Student A's explanation of the reasoning behind the units of the slope of the plot.
I disagree with Student A's explanation of the reasoning behind the units of the slope of the plot.

There is no evidence or mathematical explanation to predict the units of the slope of a line derived from crossing measurements in a graph.

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