Each degree on the kelvin scale equals: 1°c 10°c no relationship (different scale) 100°c

Answer is: 1°C.

A change of 1 Kelvin is the same as a change of 1 degree Celsius.

The temperature T in degrees Celsius (°C) is equal to the temperature T in Kelvin (K) minus 273,15: T(°C) = T(K) - 273.15.

For example:

T(He) = 4,2 K.

T(He) = 4,2 K - 273,15.

T(He) = -268,95°C.

The Celsius scale was based on 0°C for the freezing point of water and 100°C for the boiling point of water at 1 atm pressure.