The Enthalpy and Entropy of Vaporization of Ammonia at Its $\degree$

question 124

Multiple Choice

The enthalpy and entropy of vaporization of ammonia at its normal boiling point, -33.34 $\degree$ C, are 23.35 kJ/mol and 97.4 J/mol . K, respectively.What is the entropy change of the universe when one mole of liquid ammonia vaporizes in a large room maintained at 34.0 $\degree$ C? Assume the final temperature of the ammonia gas is -33.34 $\degree$ C.

• A)(+21.4 J/K)
• B)(-76.0 J/K)
• C)(+74.1 J/K)
• D)(-21.4 J/K)
• E)(+76.0 J/K)

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Definitions:

Price Elasticity of Demand

An indicator of the responsiveness of demand for a product to variations in its price, demonstrating how sensitive the quantity of the product demanded is to price fluctuations.

Advertising Elasticity of Demand

A measure of how advertising expenditures influence the quantity demanded of a product or service.

Price Elasticity of Demand

Measures how much the quantity demanded of a good responds to a change in its price, with higher elasticity indicating greater sensitivity to price changes.

Marginal Cost of Production

The increase in total production cost that arises from producing one additional unit of a good or service.