Using Hess's Law,what Is ΔH°_rxn for the Following Reaction? WO₃(s)

question 45

Multiple Choice

Using Hess's law,what is ΔH°_rxn for the following reaction? WO₃(s) + 3H₂(g) → W(s) + 3H₂O(g)
2W(s) + 3O₂(g) →2WO₃(s) ΔH°_rxn = -1685.8 kJ/mol
2H₂(g) + O₂(g) → 2H₂O(g) ΔH°_rxn = -483.6 kJ/mol

• A)117.5 kJ/mol
• B)235.0 kJ/mol
• C)359.3 kJ/mol
• D)1202.2 kJ/mol
• E)2169.4 kJ/mol

Examine methods and techniques for modifying behaviors and habits.

Understand the concept of emotional intelligence and its application in interpersonal relationships.

Recognize and interpret nonverbal cues in communication.

Distinguish between various types of responses and their effects on communication (e.g., confirming vs. disconfirming).

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Definitions:

Willingness To Pay

The maximum amount an individual is prepared to spend on a good or service.

Expected Revenue

The projected amount of money a business anticipates receiving over a certain period, typically calculated by multiplying the expected sales volume by the price of goods or services.

Probability Distribution

A probability distribution describes how probabilities are distributed over the values of a random variable.

Reservation Price

The maximum or minimum price at which a person is willing to buy or sell a good or service.