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3 years ago

53. Why do real gases deviate from the ideal gas laws at low temperatures?

Chemistry

1 answer:

kirill115 [55]3 years ago

8 0

Answer:

The volume occupied by molecules becomes a significant part of the total volume.

Attractions between molecules cause a reduction in volume.

Explanation:

C is wrong. The masses of molecules are constant.

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What is the difference between boiling point and normal boiling point?

Softa [21]

Answer:

The boiling point is the temperature at which the vapor pressure equals the pressure of gas.

The normal boiling point is the temperature at which the vapor pressure equals one atmosphere

Explanation:

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3 years ago

9- Which pair of formulae represents two alkanes? (1 mark)

Ksenya-84 [330]

Answer:

A) CH4 and C8H18

Explanation:

General Formula for an Alkane = CnH2n+2

This means for every number of Carbon (C) atoms, there are twice as many Hydrogen (H) atoms with an additional two added onto that.

Therefore, if there is one Carbon Atom, and we multiply that by two, and then add an additional two, we get 4 Hydrogen atoms, so CH4, which is our first Formulae

Secondly, if we have eight Carbon Atoms, and we multiple that by two (16), and then add an additional two, we get 18 Hydrogen atoms, so C8H18, which is our second Formulae

The other Formulas do not follow this 'General Formula'

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2 years ago

Which of the following BEST supports the Big bang theory of the origin of the universe?

inysia [295]

Answer: first one

Explanation:

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3 years ago

In the Bohr model of the hydrogen atom, the energy required to excite an electron from n = 2 to n = 3 is _______________ the ene

yawa3891 [41]

Answer:

greater than

Explanation:

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3 years ago

Propanoic acid fromula<br>

Romashka [77]

Answer:

C₃H₆O₂

Explanation:

Propionic acid is a colorless liquid with a sharp rancid odor. Produces irritating vapor. (USCG, 1999)

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3 years ago