The Following Reaction Is Spontaneous at All Temperatures

question 41

Multiple Choice

The following reaction is spontaneous at all temperatures:
CaC₂(s) + 2H₂O(l) → Ca(OH) ₂(s) + C₂H₂(g)
Which of the following statements is true?

• A)ΔH is negative and ΔS is positive.
• B)ΔH is negative and ΔS is negative.
• C)ΔH is positive and ΔS is negative.
• D)ΔH is positive and ΔS is positive.
• E)ΔG is positive at all temperatures.

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