Answer:
4441 J
Explanation:
The amount of energy needed to change the ethyl alcohol from liquid to gas state is given by
[tex]Q=m \lambda_v[/tex]
where
m = 5.20 g is the mass of the alcohol
[tex]\lambda_v = 854 J/g[/tex] is the latent heat of vaporization of the substance
Substituting the numbers into the formula, we find:
[tex]Q=(5.20 g)(854 J/g)=4,441 J[/tex]
