Answer to Question #310066 in Cell Biology for pleasehelpme!!!

Question

1. Consider the system, A + B <===> C + D at 25 °C. What is the total free energy change of this system if the total enthalpy change of the system is -3145 J/mol.K and the total entropy change is +0.47 kJ/mol.K ?

 

Is the system described in problem #1 endothermic or exothermic?

______________________ 

Is the system described in problem #1 endergonic or exergonic? _________________________

 

2. If the total free energy change of the system X + Y <===> X-Y at 37 °C is +2618.2 J/mol and the total entropy change is -173.5 J/mol.K , what is the total enthalpy change?

 

Is the system described in problem #3 endothermic or exothermic? _________________________ 

Is the system described in problem #3 endergonic or exergonic? _________________________

 

Answer 1

1. a. Endothermic

b. Endergonic

2.) H = E + PV

H= 2618.2 J/mol - 173.5 J/moL

= 2444.7J/mol

a. Exothermic

b. Exergonic