Question

The temperature at which molecular movement of matter ceases is called

• A. Normal temperature.
• B. Zero Kelvin.
• C. Abnormal temperature.
• D. None of these.

Answer 1

The correct option is B

Zero Kelvin.

Explanation

1. The temperature at which molecular movement of matter ceases is called absolute zero or zero Kelvin ($0K$).
2. Absolute zero is the lowest limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvin.
3. Therefore, The temperature at which molecular movement of matter ceases is called zero Kelvin.

Hence, option (B) is the correct answer.