If the temperatures within the two tanks of problem 3.4-9. before opening the valve, had been t = 300 k and 350 k. respectively, what would the final temperature be? b) if the first tank had contained he at an initial temperature of 300 k. and the second had contained a diatomic ideal gas with c 5/2 and an initial tempera- ture of 350 k, what would the final temperature be?

Ithink it’s 3 as the answer.

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

The reaction will shift to the right