Understanding Absolute Zero
Absolute zero is the theoretical temperature at which a system has minimal energy and is considered the lowest possible temperature. It is a fundamental concept in thermodynamics and physics.
What is Absolute Zero?
- Absolute zero is defined as 0 Kelvin (K).
- At this temperature, the motion of atoms theoretically comes to a complete stop.
Temperature Scales
- Kelvin: The Kelvin scale is an absolute temperature scale, where 0 K is absolute zero.
- Celsius: The Celsius scale defines 0 °C as the freezing point of water, which is above absolute zero (0 K = -273.15 °C).
- Fahrenheit: The Fahrenheit scale has 0 °F far above absolute zero, approximately -17.78 °C.
Answering the Question
Among the options given:
- A) 10 Kelvin: This is not absolute zero; it is above it.
- B) 0 Celsius: This is the freezing point of water, not absolute zero.
- C) 0 Fahrenheit: This corresponds to a temperature much higher than absolute zero.
- D) 0 Kelvin: This is the correct answer, as it represents absolute zero.
Conclusion
Thus, the correct answer is D) 0 Kelvin. Absolute zero is a vital concept in understanding the behavior of matter at extremely low temperatures.