Hydrogen Gas and Bromine Gas React to Form Hydrogen Bromide

question 16

Multiple Choice

Hydrogen gas and bromine gas react to form hydrogen bromide gas.How much heat (kJ) is released when 155 grams of HBr is formed in this reaction? ΔH° = -72 kJ.

• A)137
• B)69
• C)-69
• D)-137
• E)1.12 × 10⁵

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Definitions:

Continuous Reinforcement

A type of learning in which a desired behavior is reinforced every time it occurs, leading to faster acquisition of the behavior.

Intermittent Reinforcement

A conditioning schedule where a behavior is reinforced only some of the time, leading to more resistant and persistent responses.

Primary Reinforcement

A naturally rewarding stimulus, such as food or water, that satisfies a basic biological need and hence reinforces a behavior directly.

Secondary Reinforcement

A process in conditioning where a stimulus reinforces a behavior after it has been associated with a primary reinforcer.