Final answer:
To convert -10 °F to Kelvin, we first convert it to Celsius, resulting in -23.333 °C, and then add 273.15 to get the temperature in Kelvin, which is 249.8K after rounding. The correct option is c.
Step-by-step explanation:
To convert the temperature of −10 °F to Kelvin, we first need to convert Fahrenheit to Celsius and then Celsius to Kelvin. According to the conversion formulas, the first step is to use °C = 0.555 x (°F - 32).
Converting −10 °F to Celsius:
- °C = 0.555 x (−10 - 32)
- °C = 0.555 x −42
- °C = −23.333
Now we convert Celsius to Kelvin using the formula TK = °C + 273.15:
- TK = −23.333 + 273.15
- TK = 249.817
When rounded to one decimal place, the temperature in Kelvin is 249.8K, which corresponds to option c). The correct option is c.