Understanding Gibbs Free Energy and Pressure Dependence

What is the primary factor that makes entropy pressure-dependent?

• Temperature changes

• Chemical composition

• Molecular weight

• Volume changes

Which equation is used to relate free energy change to the reaction quotient Q?

• Delta G = Delta H - T Delta S

• Delta G = Delta G° + RT ln(Q)

• Delta G = H - TS

• Delta G = RT ln(P)

What is the value of the gas constant R used in the free energy equation?

• 1.987 cal/mol K

• 8.314 J/mol K

• 0.0821 L atm/mol K

• 4.184 J/g K

In the methanol formation example, what is the standard free energy change for the formation of one mole of methanol?

• -10 kJ/mol

• -50 kJ/mol

• -29 kJ/mol

• -38 kJ/mol

According to Le Chatelier's Principle, how does increased pressure affect the equilibrium of the methanol formation reaction?

• It shifts the equilibrium towards the reactants

• It has no effect on the equilibrium

• It decreases the reaction rate

• It shifts the equilibrium towards the products