Question

Isopropyl alcohol, commonly known as rubbing alcohol, boils at 82.4°C. What is the boiling point in kelvins?

1) 387.6 K
2) 355.6 K
3) 323.6 K
4) 190.8 K
5) -190.8 K

Answer 1

To convert the boiling point of isopropyl alcohol from Celsius to Kelvins, add 273.15 to the Celsius temperature. The converted boiling point is 355.6 K.

Step-by-step explanation:

The boiling point of isopropyl alcohol, known as rubbing alcohol, is given as 82.4°C. To convert this temperature to Kelvins, we must add 273.15 to the Celsius temperature since Kelvin is the SI base unit for thermodynamic temperature and 0 K is equivalent to -273.15°C.

Using this conversion, the boiling point of isopropyl alcohol in Kelvins would be:

82.4°C + 273.15 = 355.6 K

Therefore, the correct answer is 2) 355.6 K.