# What is a spontaneous reaction?

Nov 28, 2015

A spontaneous reaction by definition is a reaction that occurs without the intervention o the outside.

#### Explanation:

A spontaneous reaction by definition is a reaction that occurs without the intervention o the outside.

For example,

• when ice melts at ${25}^{\circ} C$ it will melt spontaneously.
• Water will freeze spontaneously at ${0}^{\circ} C$.
• In the presence of air and moisture, iron will rust spontaneously.
• etc.

Here is a video that explains further this topic:
Thermodynamics | Spontaneous Process & Entropy.

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