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1 year ago

True or false: water has the highest latent heat of vaporization of any known liquid.

Chemistry

1 answer:

Marysya12 [62]1 year ago

8 0

Water has the highest latent heat of vaporization of any known liquid. it is true.

The quantity of energy required to turn a portion of a liquid substance into a gas has been known as the enthalpy of vaporization, commonly referred to as the evaporation process or heat of evaporation. The pressure where the transformation occurs determines the enthalpy of vaporization.

The highest known temperature at which water vaporizes. The heat of vaporization is the amount of energy required to vaporize 1 g of a liquid without causing the liquid's temperature to go up.

Therefore, the given statement is true.

To know more about heat of vaporization

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Avogradro's number is the number of particles in one gram of carbon- 12 atom true or false?

LiRa [457]

Answer:

True

Explanation:

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro's Number (6.0221421 x 1023).

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2 years ago

In science test are sometime clled

natita [175]

Answer:

In the scientific method, an experiment is an empirical procedure that arbitrates competing models or hypotheses. Researchers also use experimentation to test existing theories or new hypotheses to support or disprove them

Explanation:

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4 0

2 years ago

Read 2 more answers

Which of the following is a chemical change

Oliga [24]

C. a burning candle

all the other choices are physical changes

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2 years ago

Which of the following forms a new substance? melting, evaporating, freezing or burning

Slav-nsk [51]

It would be burning be cause when you freeze, evaporate, or melt anything it is just changing how fast the atoms are moving . Think of it like water, ice, and steam, they are all the same thing but in different forms because of melting, evaporating,and melting. Burning is breaking it down.

4 0

3 years ago

Read 2 more answers

Calculate the molality of a solution that contains 51.2 g of naphthalene, C10H8, in 500 mL of carbon tetrachloride. The density

PtichkaEL [24]

<u>Answer:</u> The molality of naphthalene solution is 0.499 m

<u>Explanation:</u>

Density is defined as the ratio of mass and volume of a substance.

$\text{Density}=\frac{\text{Mass}}{\text{Volume}}$ ......(1)

Given values:

Volume of carbon tetrachloride = 500 mL

Density of carbon tetrachloride = 1.60 g/mL

Putting values in equation 1, we get:

$\text{Mass of carbon tetrachloride}=(1.60g/mL\times 500mL)=800g$

Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg. The formula used to calculate molarity:

$\text{Molality of solution}=\frac{\text{Given mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Mass of solvent (in g)}}$ .....(2)

Given values:

Given mass of naphthalene = 51.2 g

Molar mass of naphthalene = 128.17 g/mol

Mass of solvent = 800 g

Putting values in equation 2, we get:

$\text{Molality of naphthalene}=\frac{51.2\times 1000}{128.17\times 800}\\\\\text{Molality of naphthalene}=0.499m$

Hence, the molality of naphthalene solution is 0.499 m

4 0

2 years ago