Back to quiz

## 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
• TΔS

## 12. The more disorder there is in the system, the

• S is always a positive number
• Higher the entropy
• Decreases

## 13. Entropy ______ when a solid lattice dissolves

• Increases
• Decreases
• S is always a positive number