For a certain reaction, the change in Enthalpy is negative and the change in
Entropy is positive at a temperature of 300K: AH <0, and TAS > 0. (1pt ea)
a) Is AG = AH - TAS positive or negative?
b) Is it a spontaneous reaction or not?

a) ◇G = ◇H - T◇S wiĺl be negative.

b) It will be a spontaneous reaction.

Explanation:

As ◇H is less than 0 and T◇S is greater than 0 so if we put it in the equation we would get the negative maximum result. And when the energies are with negative sign they are said to be spontaneous.

a neutral ph of 7 and normal organism temperature is needed for a certain enzyme to be effective.  

what would happen to the enzyme if the ph and/or temperature fluctuate greatly from the norm?  

a.the enzyme’s hydrogen bonds will break.  

b.the activation energy will increase.  

c.more product will be formed.

d.the ideal temperature and ph for the enzyme function will decrease.  

most community's take hundreds of years to become stable