2NH3(g) <--> N2(g)+3H2(g) Which is most likely the effect to the forward reaction if there is an increase in pressure of the system?

The reactant surface area increases.
The reaction rate decreases.
The reaction is not affected at all.
The reaction stops completely.​

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound