Question

Arrange the following in the increasing order of temperature.

• A. ${30}^{\circ }C$
• B. ${68}^{\circ }F$
• C. ${100}^{\circ }C$
• D. $300K$

Answer 1

Let $C$ be the temperature in Celsius scale, $K$ be the temperature in Kelvin scale and $F$ be the temperature in Fahrenheit scale.
Given, $F={68}^{\circ }F$ and $K=300K$
We know, $C=\frac{5}{9}(F-32)$
So, ${68}^{\circ }F=\frac{5}{9}(68-32)={20}^{\circ }C$
and, $K=273+C$ $\Rightarrow$ C = K - 273
So, $300K=300-273={27}^{\circ }C$