MCQ

M3658 · [1]
Volume of gas collected is plotted against time and a best-fit straight line is drawn through the scattered points. The line passes through (10, 6.0) and (50, 34.0) , while plotted data points lie at (10, 5.0) and (50, 36.0) . Which expression gives the gradient in cm^3 s^-1 ?
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Volume of gas collected is plotted against time for a reaction. A tangent drawn to the curve at t = 40 s passes through the points (10 s, 12 cm^3) and (60 s, 42 cm^3) . What is...
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