Environmental Engineering Fundamentals

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What is the law of mass conservation?

Units of measurement

Amount of materials which consume and produce (correct)

Materials balance

Amount of energy into and get out the system

What is the law of energy conservation?

Materials balance

Amount of energy into and get out the system (correct)

Amount of materials which consume and produce

Units of measurement

What is the definition of concenteration (C) for liquids?

Expressed by weight

Expressed by mass of substance per mass of mixture

Defined as the am

Expressed by mass of substance per unit volume of mixture (correct)

What is the mole defined as?

The am Signup and view all the answers

What is the purpose of units of measurement?

Is a tool to find or check physical quantity that is used as a standard for dimensions Signup and view all the answers

Units of measurement are used to find or check the magnitude of relations among physical quantities by using their measurement of the same physical quantities.

True Signup and view all the answers

Dimensions are a definite magnitude of relations among physical quantities that is used as a standard for measurement of the same physical quantities.

True Signup and view all the answers

Concentration for liquids can be expressed by mass of substance per unit volume of mixture.

True Signup and view all the answers

1 mg/L is equivalent to 1 g/m3 when expressing concentration by weight.

False Signup and view all the answers

The mole is defined as the amount of a substance that contains the same number of entities as there are atoms in 12 grams of pure carbon-12.

True Signup and view all the answers

Environmental Engineering Fundamentals

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Questions and Answers

What is the law of mass conservation?

What is the law of energy conservation?

What is the definition of concenteration (C) for liquids?

What is the mole defined as?

What is the purpose of units of measurement?

Units of measurement are used to find or check the magnitude of relations among physical quantities by using their measurement of the same physical quantities.

Dimensions are a definite magnitude of relations among physical quantities that is used as a standard for measurement of the same physical quantities.

Concentration for liquids can be expressed by mass of substance per unit volume of mixture.

1 mg/L is equivalent to 1 g/m3 when expressing concentration by weight.

The mole is defined as the amount of a substance that contains the same number of entities as there are atoms in 12 grams of pure carbon-12.

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