Question

Find the value of $-197^\circ\text{C}$ temperature in Kelvin.

• A. 47 K
• B. 76 K
• C. 470 K
• D. 760 K

Hint:

Always remember that the Kelvin scale starts at absolute zero ($0\text{ K}$) and cannot have negative values. If your final calculated Kelvin temperature is negative, you've made an arithmetic error!

Answer 1

The Correct Option is B

Step 1: Recall the link between the two scales.
The Kelvin scale and the Celsius scale rise in the same size steps. To move from Celsius to Kelvin we just add 273.

Step 2: Put in the number.
Here the temperature is $-197^\circ\text{C}$, so $K = -197 + 273$.

Step 3: Do the sum.
$-197 + 273$ gives $76$. So the temperature is 76 K.
\[ \boxed{76\ \text{K}} \]