Question

The figure shows three temperature scales with the freezing and boiling points of water indicated.
70°x
-120W
90°
-Boling Point
-20°
W
30'
0
Y-
Freezing Point
(a) Rank the size of a degree on these scales, greatest first.
(b) Rank the following temperatures, highest first : 50%, 50W and 50°Y.

Answer 1

There are three temperature units kelvin, Celsius and Fahrenheit. If I consider these. Descending order - 120 W, 90°, 70°x.

Explanation:

Kelvin is the highest temperature because 0° C is equal to 273.15 k.

                      ⇒ 'k' = Kelvin

                       ⇒ 'C' = Celsius

                       ⇒ 'f' = Fahrenheit

Here, W is the Kelvin scale, 90° is the Fahrenheit scale, 70°x is the Celsius scale.

And  we know that,

                                       ⇒  C = $\frac{5}{9} \times ( f - 32)$

                                   

First is the kelvin, then Fahrenheit and at last Celsius.