When a Cold-Pack Is Activated,a Chemical Reaction Occurs and the Temperature

question 62

Multiple Choice

When a cold-pack is activated,a chemical reaction occurs and the temperature of the pack contents drops sharply.Which of the following is a correct description of the reaction occurring in the pack?

• A)The reaction is exothermic; ∆H ° > 0.
• B)The reaction is exothermic; ∆H ° < 0.
• C)The reaction is endothermic; ∆H ° > 0.
• D)The reaction is endothermic; ∆H ° < 0.
• E)None of the choices are correct.

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Definitions:

Hygiene Factors

Elements related to job satisfaction, identified by Herzberg, that do not necessarily motivate if present but can lead to dissatisfaction if absent, such as salary, working conditions, and company policies.

Motivator Factors

Elements of a job that can lead to satisfaction and motivate employees to higher performance, such as recognition, achievement, and personal growth.

Job Characteristics Model

A framework that suggests jobs can be designed with specific characteristics (skill variety, task identity, task significance, autonomy, and feedback) to enhance job satisfaction, motivation, and productivity.

Individual Differences

Variations or disparities among individuals in terms of traits, abilities, or characteristics.