Physics: The coefficient of thermal expansion (CTE) is a measure of the expansion of an object subjected to extreme temperatures. We want to use a Michaelis–Menten function of the form
where C = CTE, T is temperature in K (degrees Kelvin), and Cmax and M are constants. Table 1 lists the coefficients of thermal expansion for titanium at various temperatures.
Table 1 Coefficients of thermal expansion
T(K) | Titanium |
100 | 4.5 |
200 | 7.4 |
293 | 8.6 |
500 | 9.9 |
800 | 11.1 |
1100 | 11.7 |
(A) Plot the points in columns 1 and 2 of Table 1 on graph paper and estimate Cmax to the nearest integer. To estimate M, add the horizontal line to your graph, connect successive points on the graph with straight-line segments, and estimate the value of T (to the nearest multiple of fifty) that satisfies
(B) Use the constants and M from part (A) to form a Michaelis–Menten function for the CTE of titanium.
(C) Use the function from part (B) to estimate the CTE of titanium at 600 K and to estimate the temperature when the CTE of titanium is 10.
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