How Much Heat Is Released If 7

question 68

Multiple Choice

How much heat is released if 7.15 g CaO(s) is added to 152 g of H₂O(l) ? CaO(s) + H₂O(l) → Ca(OH) ₂(s) ΔH°_rxn = -64.8 kJ/mol

• A) 7.68 kJ
• B) 8.26 kJ
• C) 508 kJ
• D) 547 kJ
• E) 555 kJ

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Definitions:

Synapses

The junctions through which neurons communicate with other neurons, muscle cells, or gland cells.

Absolute Thresholds

The minimum stimulus energy needed to detect a particular stimulus 50% of the time.

General Tendency

A common or widespread inclination, pattern, or trend among people or phenomena.

Absolute Threshold

The minimum intensity of a stimulus that one can detect at least 50% of the time, which varies from one individual to another and for different senses.