Question

Absolute zero is defined as the temperature at ______.

Options

• All real gases liquefy

• An ideal gas would have zero pressure

• Water reaches its triple point

• Celsius and Kelvin scales show the same reading

Answer 1

Absolute zero is defined as the temperature at which an ideal gas would have zero pressure.

Explanation:

Absolute zero is the temperature where an ideal gas would exert zero pressure (−273.15 °C or 0 K).