What is 1 bar?

Explanation

To understand what 1 bar is, we can break it down into a few key points:

### Step 1: Definition of Bar
1. **Understanding Bar**: The bar is a unit of pressure. It is commonly used in various fields, including meteorology and engineering.

### Step 2: Relation to SI Units
2. **Not an SI Unit**: It is important to note that the bar is not an official SI (International System of Units) unit. The SI unit for pressure is the Pascal (Pa).

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