When a System Is at Equilibrium, _

question 78

Multiple Choice

When a system is at equilibrium, _.

• A) the process is not spontaneous in either direction
• B) the forward and the reverse processes are both spontaneous
• C) both forward and reverse processes have stopped
• D) the reverse process is spontaneous but the forward process is not
• E) the forward process is spontaneous but the reverse process is not

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Definitions:

Hydrogen

Hydrogen is a chemical element with the symbol H and atomic number 1, known as the lightest element in the periodic table and a primary component of water.

Water

A transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans.

Potassium

A soft, silvery-white metallic element, very reactive, especially in water, and essential for plant and animal life.

KCl

KCl, known as potassium chloride, is a metal halide salt composed of potassium and chlorine, used in medicine, food processing, and as a fertilizer.