Question

1. Convert the following temperatures to the celsius scale.
(a) 293 K
(b) 470 K.​

Answer 1

Answer:

Temperature in Kelvin = Temperature in °C + 273

Substitute the given value in the equation and then calculate the other unknown value.

a. 293 K = (293 – 273)

= 20 °C

b. 470 K = (470 – 273)

= 197 °C

Answer 2

Answer:

Converted the temperatures to the Celsius scale.

(a) $293 K = 19.85 ^{0}C$

(b)$470 K= 196.85 ^{0}C$

Explanation:

We know that,

$0^{0}C$ is equivalent to $273.17 K$

The expression commonly used for converting temperature in Kelvin scale to Celsius scale is given by,

$T_{C} = T_{K}- 273.15$        ...(1)

Where $T_k$ is the temperature on the Kelvin scale and $T_c$ is the temperature on the Celsius scale.

a) From the question,

$T_K = 293K$  

Using equation(1),

$T_{C} = 293- 273.15$

      $= 19.85 ^{0}C$

 b) Given,

$T_{K} = 470K$

Using equation(1),

$T_{C} = 470- 273.15$

     $= 196.85 ^{0}C$