A liquid mixture of hydrocarbons has the following composition: 40 wt% Cyclopentane, 35 wt% Toluene, and 25 wt% p-Xylene. The mass densities of Cyclopentane, Toluene, and p-Xylene at 293K are given.

Which of the following options correctly represents the composition of the liquid mixture?

A) 40 wt% Cyclopentane, 35 wt% Toluene, 25 wt% p-Xylene
B) 35 wt% Cyclopentane, 40 wt% Toluene, 25 wt% p-Xylene
C) 25 wt% Cyclopentane, 35 wt% Toluene, 40 wt% p-Xylene
D) 25 wt% Cyclopentane, 40 wt% Toluene, 35 wt% p-Xylene

The correct representation of the hydrocarbon liquid mixture's composition is 40% Cyclopentane, 35% Toluene, and 25% p-Xylene, based on the weight percentage given in the question. The correct answer to the question is option A)

Explanation:

The question refers to determining the composition of a hydrocarbon liquid mixture based on weight percent (%wt). The composition given in the question is 40% Cyclopentane, 35% Toluene, and 25% p-Xylene. These percentages indicate the proportion by weight of each component in the mixture. In order to change or assess this composition meaningfully, one would typically need additional information such as densities, volumes, or mole fractions, which are not provided in the context of this specific question. Thus, the correct representation of the mixture's composition as presented is option A) 40 wt% Cyclopentane, 35 wt% Toluene, 25 wt% p-Xylene, which is exactly as initially stated.

The composition of the hydrocarbon liquid mixture is given in weight percent (%wt), indicating the proportion by weight of each component in the mixture. As you rightly pointed out, to make further assessments or changes in the composition, additional information such as densities, volumes, or mole fractions would be necessary.