The analysis on a mass basis of an ideal gas mixture at 30°f, 15 lbf/in.2 is 25% co2, 30% co, and 45% o2.
determine:
(a) the analysis in terms of mole fractions.
(b) the apparent molecular weight of the mixture.
(c) the partial pressure of each component, in lbf/in.2
(d) the volume occupied by 10 lb of the mixture, in ft3.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .