Question

convert 256.45 k to degrees celsius. round your answer to the correct number of significant figures. \boxed{\space}^\circ c

Explanation:

Step1: Use Kelvin to Celsius formula

The conversion formula is $^\circ\text{C} = \text{K} - 273.15$

Step2: Substitute the given value

$^\circ\text{C} = 256.45 - 273.15$

Step3: Calculate and round sig figs

$^\circ\text{C} = -16.70$ (matches 4 significant figures from 256.45)

Answer:

$-16.70$