6. F- DNA
7. C
8. G
9. D
I believe these are correct, hope this helps.
nucleosynthesis is the process in nuclear reaction
By idea gas equation we can say

here P = pressure
V = volume
n = number of moles
R = Avagadro gas constant
T = temperature
So from above expression we can see that for constant number of moles we can say




So finally the pressure will be 279.1 kPa