Question

1. 150 grams of water at 75℃ is heated at constant pressure. The water is completely vaporized, what is the heat added?

Answer 1

Solution;

Givem;

$m=150g=0.15kg$

$T=75°c$

$h_{fg}=2321.1kJ/kg$

$Q=mh_{fg}$

$Q=0.15×2321.1$

$Q=348.165kJ$