6. In a reaction where there is an increase in the number of gaseous molecules, entropy

Decreases

Increases

ΔSºreaction = ΣSº(products) - ΣSº(reactants)

7. If a change makes a system more random ΔH is positive, and if a change makes a system more ordered, ΔS is

Negative

ΔSºreaction = ΣSº(products) - ΣSº(reactants)

8. The free energy change ΔG is

The balance between enthalpy, entropy, and temperature for a process: ΔG = ΔH - TΔS

The entropy change that accompanies a reaction in the molar quantities as expressed in a chemical equation under standard conditions, all in standard states

9. In calculations concerning ΔG= ΔH - TΔS entropy is worked out using K

To convert C to K add 273 and the opposite to convert K to C

The entropy change that accompanies a reaction in the molar quantities as expressed in a chemical equation under standard conditions, all in standard states

10. Standard entropy change of reaction, ΔSº, is

The entropy change that accompanies a reaction in the molar quantities as expressed in a chemical equation under standard conditions, all in standard states

S is always a positive number

11. In calculations concerning ΔG= ΔH - TΔS 1, units must be the same for kJ/J

The units need to be the same, to convert ΔS to kJ K^-1 mol^-1 /1000