K_w for the Auto-Ionization of Water, H₂O(l) $\rarr$ H⁺(aq) + OH^- (Aq), Is 1

question 66

Multiple Choice

K_w for the auto-ionization of water, H₂O(l) $\rarr$ H⁺(aq) + OH^- (aq) , is 1.0 * 10^-14. What are the signs (+/-) of $\Delta$ S ^$\circ$ and $\Delta$ H ^$\circ$ for the reaction at 25 ^$\circ$ C

• A) (\(\Delta\)S^\(\circ\)) = (+) and \(\Delta\)H^\(\circ\)= (+)
• B) (\(\Delta\)S^\(\circ\)) = (+) and \(\Delta\)H^\(\circ\) = (-)
• C) (\(\Delta\)S^\(\circ\)) = (-) and \(\Delta\)H^\(\circ\) = (+)
• D) (\(\Delta\)S^\(\circ\)) = (-) and \(\Delta\)H^\(\circ\) = (-)

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Definitions:

Decoding

The process of interpreting and understanding communication symbols and texts, often used in the context of reading and language comprehension.

Partial Report Method

A technique in cognitive psychology where participants are only asked to recall a subset of the stimuli presented, improving recall accuracy.

Sensory Memory

The shortest-term element of memory, which allows individuals to retain impressions of sensory information after the original stimuli have ended.

Sperling's Study

A classic psychological experiment conducted by George Sperling in the 1960s demonstrating the existence of sensory memory by using a grid of letters and a tone signaling which row to recall.