The heat required to convert 56.0 g of C₂Cl₃F₃ from a liquid at 14.30 ∘C to a gas at 92.60 ∘C is 3990 J
Heat capacity refers to the amount of heat energy required to raise the temperature of a substance by a certain amount. It is often expressed in terms of the specific heat capacity (c).
We know that the specific heat capacity of this compound is 0.91 J/g-K
Now;
H = mcdT
H = heat absorbed/evolved
m = mass
c = heat capacity
dT = temperature change
H = 56.0 g * 0.91 J/g-K * (92.60 ∘C - 14.30 ∘C)
H = 3990 J