For a Chemical Reaction to Be Spontaneous at All Temperatures

question 44

Multiple Choice

For a chemical reaction to be spontaneous at all temperatures, which conditions must be met?

• A) ΔS°_rxn > 0, ΔH°_rxn > 0
• B) ΔS°_rxn > 0, ΔH°_rxn < 0
• C) ΔS°_rxn< 0, ΔH°_rxn < 0
• D) ΔS°_rxn < 0, ΔH°_rxn > 0
• E) ΔS°_rxn = 0, ΔH°_rxn = 0

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Definitions:

Wizard of Oz

A research and testing method where users interact with a system that they believe to be autonomous, but is actually being operated or manipulated by a person.

Prototype

An early model or version of a product that is built to test a concept or process.

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A personal transporter based on a skateboard but powered by an electric motor and often controlled by a wireless hand-held throttle or weight sensor controls.

Wizard of Oz

A reference to an experimental prototype testing method where users interact with a system that they believe is autonomous, but is actually being operated or controlled by a human.