Convert: 4.13 Mol PCl₅ = ___________ Molecules PCl₅

question 15

Multiple Choice

Convert: 4.13 mol PCl₅ = ___________ molecules PCl₅

• A) 2.49 *10²⁴
• B) 6.86 * 10^-24
• C) 1.46 *10²³
• D) 1.19 * 10²²
• E) none of these

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Definitions:

First Law of Thermodynamics

A principle stating that energy cannot be created or destroyed, only transformed from one form to another.

Second Law of Thermodynamics

A fundamental principle of physics stating that the total entropy of an isolated system can never decrease over time, and is constant if and only if all processes are reversible.

Entropy

A measure of disorder or randomness in a system, often associated with the second law of thermodynamics, stating that entropy within a closed system tends to increase over time.

Two Laws of Thermodynamics

Fundamental principles of physics that describe energy conservation and the increase of entropy, respectively, in a closed system.