Question

The amount of gteam (at 100°c) required
to raise the temperature of 200g of
water from 60c to 100°c is
​

Answer 1

14.8 g

mass of water mw= 0.2kg

specific heat of water sw =4.187 kJ/kg

latent heat of water lw= 2257 kJ/kg

ms x latent heat = mwcwpw (Δt)

ms X  2257 = 0.2 X 4.187(100-60)

ms =  14.8 g