I need help with two Chemistry questions please.

Oct 27th, 2015
RockCafe
Category:
Chemistry
Price: $5 USD

Question description

1.  The ΔG for the freezing point at H2O(l) at -10 °C is -210 J/mol, and the heat of fusion of ice at this temperature is 5610 J/mol.  Find the entropy change of the universe when 1 mol of water freezes at -10 °C.


2.  Which statement is true?

a.  A reaction in which the entropy of the system increases can be spontaneous only if it is exothermic.

b.  A reaction in which the entropy of the system increases can be spontaneous only if it endothermic.

c.  A reaction in which the entropy of the system decreases can be spontaneous only if it is exothermic.


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(Top Tutor) Daniel C.
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