When 542 mL of O2 gas at 30°C and 1.04 atm is cooled to -40°C and the pressure is in-
creased to 2.4 atm what is the new volume of
this gas sample?
Answer in units of mL.

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 .

Replicate prove reliability and validity