Final answer:
The boiling temperature of liquid ammonia, −28.1 °F, converts to 239.75 Kelvin.
The correct answer is option (a) 239.75K.
Step-by-step explanation:
To convert the boiling temperature of liquid ammonia from Fahrenheit to Kelvin, first, we need to convert the temperature from Fahrenheit to Celsius, then from Celsius to Kelvin. The formula to convert Fahrenheit to Celsius is °C = (°F - 32) × 5/9. Once we have the temperature in Celsius, we can convert to Kelvin by adding 273.15 to the Celsius temperature.
Using the given temperature of liquid ammonia, which is −28.1 °F:
- Convert to Celsius: °C = (−28.1 °F - 32) × 5/9 = −33.4 °C
- Convert to Kelvin: K = −33.4 °C + 273.15 = 239.75 K
Therefore, the boiling temperature of liquid ammonia in Kelvin is 239.75 K, which corresponds to option (a) 239.75K.