Question

*True or False: Long, weak bonds (like those found in non-polar C-H bonds) have higher potential energy than short, strong bonds (like those found in polar O-H bonds).

Adenosine triphosphate (ATP) can be hydrolyzed to become ADP and inorganic phosphate. It has a deltaG of -7.3 kcal/mol. This reaction… (Choose ALL correct answers)

[]	is exergonic.

[]	is endothermic.

[]	releases energy.

[]	is spontaneous.

Changes in free energy are related to both enthalpy and entropy. Which equation best represents this?

a).	deltaG = deltaH-TdeltaS

b).	deltaG = deltaS – TdeltaH

c).	delta S = delta G + deltaH

d).	delta G = deltaH + TdeltaS

Answer 1

Long, weak bonds (like those found in non-polar C-H bonds) have higher potential energy than short, strong bonds (like those found in polar O-H bonds) : FALSE

[Short bonds are difficult to break as they have high potential energy]

Adenosine triphosphate (ATP) can be hydrolyzed to become ADP and inorganic phosphate. It has a deltaG of -7.3 kcal/mol. This reaction:

is exergonic, releases energy and is spontaneous [An exergonic reaction is one in which energy is released. Since delta G is negative, energy is released and is spontaneos.]

Changes in free energy are related to both enthalpy and entropy. Which equation best represents this?

a) delta G = delta H - Tdelta S