What is Absolute Zero in Celsius?

What is Absolute Zero in Celsius?

• A. -273.16 C
• B. 0 C
• C. 273.16 C
• D. -456.69 C

Answer: (A)

Absolute Zero is defined as the lowest possible temperature where molecular motion is minimized. In the Celsius scale, this temperature is equivalent to -273.15 degrees Celsius. However, when rounding to two decimal places, it is often represented as -273.16 degrees Celsius due to variations in temperature definitions and calculations. Thus, the choice of -273.16 C aligns closely with the scientific consensus regarding the temperature at which all thermal motion ceases. In contrast, the other provided options represent temperatures that do not correspond to Absolute Zero. A temperature of 0 C is the freezing point of water, not close to Absolute Zero. The temperature of 273.16 C is far above it, while -456.69 C is also an incorrect representation since it is much lower than Absolute Zero. Thus, the choice of -273.16 C accurately reflects the theoretical limit of absolute temperature on the Celsius scale.

Absolute Zero is defined as the lowest possible temperature where molecular motion is minimized. In the Celsius scale, this temperature is equivalent to -273.15 degrees Celsius. However, when rounding to two decimal places, it is often represented as -273.16 degrees Celsius due to variations in temperature definitions and calculations. Thus, the choice of -273.16 C aligns closely with the scientific consensus regarding the temperature at which all thermal motion ceases.

In contrast, the other provided options represent temperatures that do not correspond to Absolute Zero. A temperature of 0 C is the freezing point of water, not close to Absolute Zero. The temperature of 273.16 C is far above it, while -456.69 C is also an incorrect representation since it is much lower than Absolute Zero. Thus, the choice of -273.16 C accurately reflects the theoretical limit of absolute temperature on the Celsius scale.