If a Student Performs an Endothermic Reaction in a Calorimeter,how $\Delta$

question 23

Multiple Choice

If a student performs an endothermic reaction in a calorimeter,how does the calculated value of $\Delta$ H differ from the actual value if the heat exchanged with the calorimeter is not taken into account?

• A)"\(\Delta\)H_calc" would be more negative because the calorimeter always absorbs heat from the reaction.
• B)"\(\Delta\)H_calc" would be less negative because the calorimeter would absorb heat from the reaction.
• C)"\(\Delta\)H_calc' would be more positive because the reaction absorbs heat from the calorimeter.
• D)"\(\Delta\)H_calc" would be less positive because the reaction absorbs heat from the calorimeter.
• E)"\(\Delta\)H_calc" would equal the actual value because the calorimeter does not absorb heat.

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Definitions:

Punishment by Removal

A behavioral modification technique involving the withdrawal of a desirable stimulus to decrease the likelihood of a behavior reoccurring.

Classical Conditioning

A method of acquiring behaviors through the regular association of two stimuli; the response at first triggered by the second stimulus is eventually triggered by the first stimulus by itself.

Time Consuming

Requiring a significant amount of time to complete, often more than is desired or anticipated.

Learning

Learning is a process through which experience or practice results in a relatively permanent change in behavior or potential behavior.