Calculate the Work Done by the System When 2 Moles

question 101

Multiple Choice

Calculate the work done by the system when 2 moles of hydrogen gas is produced by the following reaction in a closed container.
Zn(s) +2HCl(aq) = ZnCl₂(aq) + H₂(g)

• A)+4.8 kJ
• B)-4.8 kJ
• C)0 kJ
• D)2.0 kJ

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Definitions:

Reinforcing Desired Behaviors

A technique in behavior therapy and conditioning involving rewards or positive feedback to encourage the repetition of specific actions or conduct.

Systematically Desensitizing

A therapeutic technique used to reduce fear or anxiety towards a particular object or situation by gradually exposing the subject to the object or situation in a controlled manner.

Test Anxiety

A psychological condition in which individuals experience extreme distress and anxiety in testing situations, potentially impairing their performance.

Token Economy

An operant conditioning procedure in which people earn a token of some sort for exhibiting a desired behavior and can later exchange the tokens for various privileges or treats.