Verified answer

The temperature of Celsius = (Fahrenheit - 32) / 1.8. This means that

(-11 - 32) / 1.8 = -23.8888 degrees Celsius.

Getting this to Kelvin is much simpler. Celsius + 273 = Kelvin.

SO -23.8888 + 273 = 249.11111 degrees Kelvin.

If you can't remember the formula, try this approach-

-11°F is 43 degrees below the freezing point of water. (Water freezes at 32°F).

There are 180 degrees between the freezing point of water and the boiling point of water (212°F - 32°F = 180). However, on the Celsius scale there are only 100 degrees between the freezing and boiling points of water (100°C - 0°C = 100). So a change of 1°F is equal to a change of (100/180)°C or 5/9°C.

So -11°F is 43 degrees below the freezing point of water on the Fahrenheit scale and it will be 5/9x43 degrees below freezing on the Celcius scale. 0°C - 5/9(43) = -23.888..°C

Celcius to Kelvin is much easier. A change of 1°C equals a change of 1 Kelvin and 0 Kelvin = 273.15°C. So °C + 273.15 = Kelvin. -23.888.. + 273.15 = 249.26 Kelvin.

0

11 degree Fahrenheit = 261.4833333 kelvin