Question

A temperature of –25°C is equivalent to: A. 248 K. B. 25 K. C. –25 K. D. 298 K.

Answer 1

A temperature of –25°C is equivalent to 248 K because you convert Celsius to Kelvin by adding 273.15 to the Celsius temperature.

Step-by-step explanation:

A temperature of –25°C is equivalent to 248 K. To convert from Celsius to Kelvin, we add 273.15 to the Celsius temperature. Therefore, the conversion formula would be K = –25°C + 273.15, which equals 248 K.

The Kelvins literally represent the magnitude of Celsius degrees but are measured from the absolute zero, which is 0 K. Absolute zero is the point at which all molecular motion ceases, and this is approximately –273°C. Hence, when dealing with temperature conversions between these two scales, the only difference lies in their starting points, with Kelvin beginning at absolute zero and Celsius at the freezing point of water.

Answer 2

A. 248 K. In order to convert celsius to kelvin, just add 273.15 and round.