Question

Choose the correct statements regarding absolute zero temperature.

• A. Water freezes
• B. $-{273.15}^{\circ }C$
• C. Molecular motion ceases
• D. $0K$

Answer 1

Answer: (B), (C), (D)

The correct options are
B $-{273.15}^{\circ }C$
C Molecular motion ceases
D $0K$

The absolute zero is defined as 0 K on the Kelvin scale. It is the temperature at which molecular motion ceases. Hence, matter ceases to exist. Using temperature scale conversions,
$C=K-273.15$
$C=-273.15$
Hence, $0K=-{273.15}^{\circ }C$