According to the Following Thermochemical Equation, What Mass of H₂O

question 77

Multiple Choice

According to the following thermochemical equation, what mass of H₂O (in g) must form to produce 975 kJ of energy? SiO₂(s) + 4HF(g) → SiF₄(g) + 2H₂O(l) Δ_rH° = -184 kJ

• A)68.0 g
• B)102 g
• C)54.1 g
• D)191 g
• E)95.5 g

---

Definitions:

McGregor's Theory

A concept in management theory, divided into Theory X and Theory Y, that describes two contrasting views of workforce motivation and behavior.

Expectancy Theory

A motivational theory suggesting that individual motivation is influenced by the expectation of desired outcomes and the attractiveness of those outcomes.

Herzberg's Motivation-Maintenance Theory

A refined explanation of Herzberg's theory specifying motivation factors that inherently motivate employees and hygiene factors needed to prevent dissatisfaction.

Maslow's Hierarchy

A theory in psychology proposed by Abraham Maslow, describing a five-tier model of human needs, arranged in a hierarchy that must be fulfilled sequentially from basic physiological needs to self-actualization.