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3 years ago

Magnetism is believed to be caused by the alignment of small, numerous sub-units called

Chemistry

1 answer:

77julia77 [94]3 years ago

5 0

Answer:

Magnetism is believed to be caused by the alignment of small, numerous sub-units called : Domains

Explanation:

Domains : A magnetic domain is the region in which in which magnetic field of the atoms are grouped together and aligned.

In unmagnetized material all the magnetic Domains point in different direction.

In magnetised material (ferromagnets , antiferromagnets) , The Domains point in a particular( fixed Pattern) direction.

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A gas has a volume of 490. mL at a temperature of -35.0 degrees C. What volume would the gas occupy at 42.0 degrees Celsius? Ple

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Answer:

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Explanation:

Here we will assume that the pressure of the gas is constant, since it is not given or specified.

Therefore, we can use Charle's law, which states that:

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$\frac{V}{T}=const.$

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The equation can be rewritten as

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where in this problem we have:

$V_1=490 mL$ is the initial volume of the gas

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$T_2=42.0^{\circ}+273=315 K$ is the final temperature

Solving for V2, we find the final volume of the gas:

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