Question

a sample of liquid copper required 254 kj to vaporize the sample. Calculate the mass of copper vaporized. The heat of vaporization of copper is 4.81 kj/g

Answer 1

Mass of copper vaporized is 52,8g

Step-by-step explanation:

The heat of vaporization (ΔHvap) is defined as the amount of energy you require to transform a quantity of liquid in gas. The formula is:

Q = ΔHvap×mass

Where Q is the amount of heat and mass is the mass of the compound.

If you required 254 kJ to vaporize a sample of copper which heat of vaporization is 4,81 kJ/g:

254kJ = 4,81 kJ/g × mass of copper

52,8g = mass of copper

I hope it helps!