Which of the following is an extensive property?

Options

A. Ethanlpy
B. Concentration
C. Density
D. Visocity

Explanation

To determine which of the given properties is an extensive property, we need to understand the definitions of extensive and intensive properties.

### Step-by-Step Solution:

1. **Define Extensive Property**:
An extensive property is a property that depends on the amount of substance present in a system. This means that if you increase the quantity of the substance, the value of the extensive property will also increase. Examples include mass, volume, and enthalpy.

2. **Identify the Options**:
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