Question

If 57500 joules of heat are given off when a sample of steam condenses, what is the mass of the steam?

Answer 1

m = 0.025 kg

Step-by-step explanation:

Condensation is the change of state of a substance from vapor to liquid. This involves the specific latent heat of vaporisation of water = 2.25 × 10^6 J/kg

Amount of heat (Q) = mass (m) × Specific latent heat of vaporisation (Lv)

m = Q ÷ Lv

m = (57500 J) ÷ (2.25 × 10^6 J/kg)

m = 0.025 kg