What is the value of absolute zero temperature in Celsius?
A
-373°C
B
-273.15°C
C
-100°C
D
0°C
Correct Answer: Option B — -273.15°C
Explanation:
Absolute zero is -273.15°C, the theoretical temperature at which all molecular motion ceases and entropy reaches its minimum value. It serves as the zero point on the Kelvin scale, which is widely used in thermodynamic calculations.