Question

Find the value of \(-197^\circ C\) temperature in Kelvin.

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

Hint:

Always add 273 (or 273.15 for precision) to Celsius to get Kelvin. Negative Celsius values still yield positive Kelvin values as long as they are above absolute zero (\(-273.15^\circ C\)).

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
Convert \(-197^\circ \text{C}\) to Kelvin.

Step 2: Key Formula or Approach:
Kelvin = Celsius + 273.15 (or approximately +273).

Step 3: Detailed Explanation:
\[ T_K = -197 + 273 = 76\ \text{K}. \] (Using exact 273.15 gives \(76.15\ \text{K}\), which rounds to 76 K.)

Step 4: Final Answer:
The temperature is 76 K, corresponding to option (B).