Question

Do not include spaces in your answer. use uppercase a, b, and c. in a mixture of three gases (a, b, and c), the number of moles of each gas is known (na, nb, and nc). how would the mole fraction of gas a (χa) be calculated using the values na, nb, and nc?

Answer 1

The mole fraction of gas A (χA) is calculated using the formula χA = NA / (NA + NB + NC), where NA is the moles of gas A and NA + NB + NC is the total moles of all gases in the mixture.

Step-by-step explanation:

The mole fraction of gas A (χA) is calculated by dividing the number of moles of gas A (NA) by the total number of moles of the mixture (nTotal). The formula to compute the mole fraction is χA = NA / (NA + NB + NC). It is important to note that the mole fraction is a dimensionless quantity between 0 and 1, where a mole fraction of 1 indicates a pure substance and 0 indicates that the substance is not present in the mixture. The sum of mole fractions for all components in a mixture must equal 1.