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Difference between Volume and Capacity

Difference between Volume and Capacity

Volume and capacity are two terms that are often confused. Though they have similar meanings, there is a differences between them. This blog post will define volume and capacity, as well as highlight the distinction between the two. By understanding the difference, you can ensure you are using the correct term for the situation at hand.

What is Volume?

Volume is the quantity of three-dimensional space enclosed by some closed boundary, for example, the space that a substance or object occupies or contains. Volume is often quantified numerically using the SI-derived unit, the cubic meter. The volume of a solid can be determined by fluid displacement. Displacement of water by a submerged object can be used to determine the volume of the object, and other methods are also available for measuring volumes of irregular objects such as open-top tanks. Volume is a fundamental parameter in thermodynamics and it is convenient to express volume changes in terms of partial derivatives and therefore nestle it inside a larger expression for enthalpy. seldom need to be considered independently because they combine naturally with volumetric flow rates to form volume fluxes (volumetric flow per unit area), which are more relevant.’). As such, the concept of volume is particularly useful for describing many physical processes where combining substances or objects is involved. For example, entropy change due to a mixing process (of ideal gases) can be calculated from Volume ratios.

What is Capacity?

Capacity is a measure of volume. The SI unit for Capacity is the liter (L). The Capacity of an object is the amount of space that the object occupies. Capacity is often used to describe the size of containers such as bottles and cans. It is also used to describe the amount of liquid that a container can hold. For example, a bottle with a Capacity of 1 liter can hold 1 liter of water.

Difference between Volume and Capacity

Volume is the amount of space that an object takes up, while capacity is the amount that an object can hold. Volume is a measurement of three dimensions (length, width, and height), while capacity is a measure of how much fluid an object can hold. In other words, capacity is a measure of volume; however, not all objects have the same capacity. For example, a cup has a smaller capacity than a bucket. The size of the object affects the capacity. A container that is long and thin will have a greater capacity than one that is short and wide because it can hold more fluid. To calculate volume, you need to know the dimensions of the object. To calculate capacity, you need to know the dimensions of the container and the amount of fluid it can hold.


We hope this article has helped clear up any confusion between volume and capacity. Volume is the amount of liquid that can be poured into a container, while capacity is the maximum amount of liquid that a container can hold. When measuring volume, you use units such as milliliters or liters. Capacity is usually measured in terms of cups or ounces. Thanks for reading!

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