What is the limiting low temperature of a physical object?

Options

A. There is no limiting low temperature
B. 0 K
C. `0^@C`
D. `0^@F`

Answer

To determine the limiting low temperature of a physical object, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Temperature and Energy**:
- Temperature is a measure of the average kinetic energy of the particles in a substance. The more energy the particles have, the higher the temperature.

2. **Kinetic Theory of Gases**:
- According to the kinetic theory, the temperature of a gas is directly related to the kinetic energy of its molecules. The formula for kinetic energy is given by \( KE = \frac{1}{2} mv^2 \), where \( m \) is the mass and \( v \) is the velocity of the particles.

3. **Defining Absolute Zero**:
- Absolute zero is the theoretical temperature at which particles have minimum thermal energy. At this point, the particles are at rest, and their kinetic energy approaches zero. This temperature is defined as 0 Kelvin (K).

4. **Comparing Temperature Scales**:
- 0 Kelvin is equivalent to -273.15 degrees Celsius and -459.67 degrees Fahrenheit. Thus, both 0 degrees Celsius and 0 degrees Fahrenheit are above 0 Kelvin.

5. **Conclusion**:
- Therefore, the lowest possible temperature that can be achieved, known as absolute zero, is 0 Kelvin. This is the limiting low temperature of a physical object.

### Final Answer:
The limiting low temperature of a physical object is **0 Kelvin**.