The pressure in a cerain process is related to the temperature by the equation p(psi) = 12.0T(Degrees F) + 3.00

If the temperature of the process is 120 + or - 10 degrees F,Calculate the pressure (in psi) and the uncertainty

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- Feb 3rd 2009, 07:51 PMVkLRelated pressure/Temperature
The pressure in a cerain process is related to the temperature by the equation p(psi) = 12.0T(Degrees F) + 3.00

If the temperature of the process is 120 + or - 10 degrees F,Calculate the pressure (in psi) and the uncertainty - Feb 4th 2009, 11:31 AMJester
Substutite the values

$\displaystyle T_1 = 110, T_2 = 120 \;\; \text{and}\;\; T_3=130 $ into your formula giving

$\displaystyle P_1 = 1323, P_2=1443,\;\; \text{amd}\;\; P_3=1563$

So the pressure is 1443 with a tolerance of $\displaystyle \min(P_2-P_1,P_3-P_2)$ which in your case is 120.