Question

. Ethanol has a specific gravity of 0.79 . One liter of ethanol weighs (a) $0.79 \mathrm{~N}$ (c) $7.7 \mathrm{~N}$ (b) $1.3 \mathrm{~N}$ (d) $12.4 \mathrm{~N}$

Name: Problem 6, Chapter 16: Schaum's Outline of Applied Physics
Uploaded: 2021-07-04T07:38:13-08:00
Duration: 2 min 22 s
Channel: Kartik Indoliya
Description: . Ethanol has a specific gravity of 0.79 . One liter of ethanol weighs (a) 0.79 N (c) 7.7 N (b) 1.3 N (d) 12.4 N

    . Ethanol has a specific gravity of 0.79 . One liter of ethanol weighs
(a) $0.79 \mathrm{~N}$
(c) $7.7 \mathrm{~N}$
(b) $1.3 \mathrm{~N}$
(d) $12.4 \mathrm{~N}$

Schaum's Outline of Applied Physics

Arthur Beiser 1st Edition

Chapter 16, Problem 6

Instant Answer

Solved by Expert Kartik Indoliya

07/04/2021

Step 1

Specific gravity is the ratio of the density of a substance to the density of a reference substance, typically water for liquids. The density of water is approximately $1000 \, \text{kg/m}^3$. Show more…

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. Ethanol has a specific gravity of 0.79 . One liter of ethanol weighs (a) $0.79 \mathrm{~N}$ (c) $7.7 \mathrm{~N}$ (b) $1.3 \mathrm{~N}$ (d) $12.4 \mathrm{~N}$

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Key Concepts

Specific Gravity

Specific gravity is the ratio of the density of a substance to the density of a reference substance (commonly water). It is a dimensionless quantity that indicates how heavy a material is compared to water, which is useful for determining the density if the water’s density is known.

Density

Density is the mass per unit volume of a substance and is a fundamental property used to calculate various physical properties. In problems involving liquids, knowing the density allows one to convert from volume to mass, which is essential when determining the weight of a given volume.

Mass and Weight Relationship

Mass is a measure of the amount of matter in an object, while weight is the force exerted on that mass by gravity. The weight of an object can be calculated by multiplying its mass by the acceleration due to gravity. This relationship is crucial for converting mass (obtained from volume and density) into a force measured in newtons.

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