Question

A student boils 9.43 grams of an unknown substance into vapor. If completely vaporizing the substance required 8,720 joules of energy, what is the heat of vaporization?

Answer 1

The heat of vaporation is 924.

Answer 2

The heat of vaporization is =924.71 j/g

Step-by-step explanation

Heat of vaporization is amount of heat require to vaporize 1 gram of a substance.

Heat of vaporization required is therefore=8720 joules/9.43 grams=924.71 j/g