Calculate the amount of heat that is required to turn into a vapor of alcohol weighing 200 grams

Calculate the amount of heat that is required to turn into a vapor of alcohol weighing 200 grams at a temperature of 27 degrees Celsius.

To solve the problem, you need to write the following formula:
Q₁ = c * m / (t₂ – t₁);
You also need a formula:
Q₂ = L * m;
Let’s combine the two formulas:
Q = Q₁ + Q₂.
We are given values:
s = 2500 J / kg * C °;
t₂ = 78 C °;
L = 805 kJ / kg.
Substitute in the formula:
Q₁ = 2500 J / kg * C ° * 200 g / (78 C ° – 24 C °);
Q₁ = 500/54
Q₁ = 9.
Answer: Q₁ = 9.