Chemistry

Na reacts violently with H2O to produce NaOH and H2. The resulting solution has a higher T than it did before the Na was added. What are the expected changes?

deltaH ?
deltaS >0
deltaG <0
deltaP >0

I know the last three for a fact.

Is deltaG "<0" ?

If the reaction is exothermic what does that say about delta H?
Is the system more or less ordered?
For a reaction to be spontaneous, what must delta G be, + or -?
What is delta P? If that is pressure, why is delta P > 0?

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