6. entopy values are
- can be negative and positive
- positive only
- negative only
7. from 3 moles of gas to 2 moles of gas. the entropy change is
- negative
- positive
- zero
8. can endothermic reactions be spontaneous
- no, the sytem has gained energy so becomes less stable
- yes, its also effected by entropy change
- yes, its also effected by enthalpy change
- no, its also effected by enthalpy change
9. free energy is
- ΔH-TΔS
- extra energy in a sytem
- ΔS
- energy released from a system