Question

using the proper conversion factor, convert -25.5°f to k.

Explanation:

Step1: Convert Fahrenheit to Celsius

Use the formula $C=\frac{5}{9}(F - 32)$. Substitute $F=-25.5$ into it.
$C=\frac{5}{9}(-25.5 - 32)=\frac{5}{9}\times(-57.5)\approx - 31.94^{\circ}C$

Step2: Convert Celsius to Kelvin

Use the formula $K = C+273.15$. Substitute $C=-31.94$ into it.
$K=-31.94 + 273.15=241.21$ K

Answer:

241.21