Question

The temperature in degrees Celsius is 273.15 less than the temperature in kelvin. Andrew is conducting a science experiment where the temperature must be kept between 13.5°C and 18.5°C. Andrew wants to know the range of the temperature in kelvin.

Select all of the whole number temperatures, in kelvin, at which Andrew can conduct his experiment.

Answer 1

The whole number temperatures, in kelvin, at which Andrew can conduct his experiment are 287, 288, 289,290,291.

Explanation:

The temperature in degrees Celsius is 273.13 less than the temperature in kelvin; mathematically this means:

`k=c+273.15`

Where
`k` is the temperature in kelvin and
`c` is the temperature in Celsius.

From this relationship we convert Andrew's temperature range—

13.5°c to 18.5°c—to kelvin:

`k_1=13.5^oc+273.15=286.65`

`k_2=18.5^oc+273.15=291.65`

Thus Andrew can conduct his experiment between 286.65 and 291.65 kelvin, and the whole number temperatures between these extremes are 287, 288, 289,290,291.

Thus the whole number temperatures, in kelvin, at which Andrew can conduct his experiment are 287, 288, 289,290,291.