Final answer:
The temperature of pure nitrogen at 15°C converted into Kelvin is 288.15 K, making the correct answer option E) 288.15 K.
Step-by-step explanation:
To convert the temperature of pure nitrogen from Celsius to Kelvin, we use the following conversion formula: Kelvin (K) = Celsius (°C) + 273.15. When the given temperature is 15°C, the conversion to Kelvin would be:
K = 15°C + 273.15 = 288.15 K
Therefore, the temperature of nitrogen in units of Kelvin is option E) 288.15 K.
To convert a temperature from Celsius to Kelvin, you need to add 273.15 to the Celsius temperature. In this case, the given temperature is 15°C. Adding 273.15 to it, we get:
Tkelvin = 15°C + 273.15 = 288.15 K
Therefore, the temperature of nitrogen in Kelvin units is 288.15 K (option E).