When 0560 G of Na(s) Reacts with Excess F₂(g) to Form

question 86

Multiple Choice

When 0.560 g of Na(s) reacts with excess F₂(g) to form NaF(s) , 13.8 kJ of heat is evolved at standard-state conditions. What is the standard enthalpy of formation ( $\Delta$ H ^$\circ$ _f) of NaF(s)

• A) -570 kJ/mol
• B) -24.8 kJ/mol
• C) -7.8 kJ/mol
• D) 24.8 kJ/mol
• E) 570 kJ/mol

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Definitions:

First-degree Price Discrimination

A pricing strategy where a seller charges the maximum possible price for each unit consumed, tailored to the buyer's willingness to pay.

Incremental Revenue

The additional income received from selling one more unit of a product or service.

Marginal Revenue

The additional income received from selling one more unit of a good or service; it is a critical concept in deciding the optimal quantity of goods to produce.

Price Discrimination

The practice of charging different prices to different consumers for the same product or service, based on their willingness to pay.