How much energy is required to vaporize 2kg of gold?

To vaporize gold, you need to consider its heat of vaporization, which is approximately 1,500 kJ/kg. For 2 kg of gold, the energy required would be 2 kg × 1,500 kJ/kg = 3,000 kJ. Thus, it takes about 3,000 kJ of energy to vaporize 2 kg of gold.