Estimate Δ_rG° for the Following Reaction at 449

question 8

Multiple Choice

Estimate Δ_rG° for the following reaction at 449.0 K. CH₂O(g) + 2H₂(g) → CH₄(g) + H₂O(g) Δ_rH°= -94.9 kJ mol^-1; Δ_rS°= -224.2 J K^-1 mol^-1

• A) +5.8 kJ mol^-1
• B) +12.9 kJ mol^-1
• C) -101 kJ mol^-1
• D) +2.4 kJ mol^-1
• E) -4.2 kJ mol^-1

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Definitions:

Negative Reinforcement

A behavior modification process where the likelihood of a behavior is increased by removing or avoiding a negative outcome.

Positive Reinforcement

The process of encouraging or establishing a pattern of behavior by offering rewards when the behavior is exhibited.

Neutral

Describes a state or position of impartiality, or not favoring any side in a conflict, competition, or a situation requiring a choice.

Relearn

The process of learning information, skills, or behaviors again, which were previously learned but may have been forgotten or lost.