Which of the Following Reactions Would You Predict Is Endothermic $\to$

question 153

Multiple Choice

Which of the following reactions would you predict is endothermic?

• A)2 H₂(g)+ O₂(g)\(\to\) 2 H₂O( )
• B)Na(s)+ Cl₂(g)\(\to\) NaCl(s)
• C)2 Cl(g)\(\to\) Cl₂(g)
• D)3 CO₂(g)+ 4 H₂O(g)\(\to\)C₃H₈(g)+ 5O₂(g)
• E)H₂O₂(aq)\(\to\) H₂O( )+ O₂(s)

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Definitions:

Stimuli

Any external or internal event or object that influences reactions or responses from a biological organism or system.

Tone Sensitivity

The ability to distinguish different frequencies of sound or musical notes.

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time.

Difference Threshold

The minimum difference between two stimuli required for detection 50 percent of the time. We experience the difference threshold as a just noticeable difference (or jnd).