Problem Set #$2$

Compounds $A,B,$&$C$ are found to be at equilibrium in solution in a flask. The compounds are related by the following $2-$reaction sequence: AlarrBlarrC.

You begin adding more compound $A$ to the reaction vessel. Assuming that all forward and reverse reactions could occur, what effect will this have on reaction $1(AlarrB)?$ On reaction $2(BlarrC)?$

For each statement below, indicate if the statement is true or false.

A$)$ If the entropy of the universe would increase, a given reaction is allowed to occur as written from left to right.

B$)$ If the entropy of the system would increase, a given reaction is allowed to occur as written from left to right.

For the reaction AlarrB, if $K_{eq}\text{'}$ is $>1,$ what can you tell me about the value of $G$ for this same reaction?

The reaction below might be a suitable coupled reaction to provide the energy for which of the following reactions $($A$-$E$)?$

Phosphocreatine $+H_2$Oharr$$ creatine $+,G=-10\mathrm{.}3$kca$\frac{l}{m}ol$

A$.$ Pyruvate $+larr$ phosphoenolpyruvate $+H_{2}O$

$G=+14\mathrm{.}8$kca$\frac{l}{m}ol$

$G=+7\mathrm{.}3$kca$\frac{l}{m}ol$

$G=+11\mathrm{.}8$kca$\frac{l}{m}ol$

$G=+7\mathrm{.}1$kca$\frac{l}{m}ol$

$G=+5$kca$\frac{l}{m}ol$

B$.$ ADP$+larr$ATP$+H_{2}O$

C$.3-$phosphoglycerate $+larr1,3-$bisphosphoglycerate $+H_{2}O$

$G=+11\mathrm{.}8$kca$\frac{l}{m}ol$

D$.$ Malate $+NA{D}^{+}$larr$$ oxaloacetate $+$NADH$+H^{+}$

$G=+7\mathrm{.}1$kca$\frac{l}{m}ol$

E$.$ glucose $+larr$ Glucose$-1-$phosphate $+H_{2}O$

For the reactions not selected, explain why you did not select each one of them.