3 years ago

38 When a sample of a gas is heated in a sealed, rigid container from 200. K to 400. K, the pressure exerted by the gas is

Chemistry

1 answer:

Kryger [21]3 years ago

8 0

Increased by a factor of 200

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B=55cm

H=25cm

$\\ \bull\tt\longrightarrow V=LBH$

$\\ \bull\tt\longrightarrow V=25(78)(55)$

$\\ \bull\tt\longrightarrow V=107250cm^3$

$\\ \bull\tt\longrightarrow V=10.72m^3$

Now

Mass=5.5kg

$\\ \bull\tt\longrightarrow Density=\dfrac{Mass}{Volume}$

$\\ \bull\tt\longrightarrow Density=\dfrac{5.5}{10.72}$

$\\ \bull\tt\longrightarrow Density=0.5kg/m^3$

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As it is less than density of water it will float on water

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2 years ago

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Alexandra [31]

To determine the heat dissipated when a substance freezes, we multiply the heat of fusion of the substance to the mass of the substance that freezes. We calculate as follows:

Heat = -3.16 (64/32.06) = - 6.32 kJ

Hope this answers the question.

5 0

3 years ago

Read 2 more answers

3. How did your hypothesis work out? What was surprising in this experiment?

MAXImum [283]

Answer:

Whats the hypothesis and the experiment?

Explanation:

I cant really help without context

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3 years ago

This is the phase of matter with no fixed shape or volume.

madreJ [45]

By circle fraction additional number for the number

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What change would increase the amount of solid solute able to be dissolved in liquid water?

exis [7]

Bonjour,

increasing temperature.
for many solids dissolved in liquid water, the solubility increases with temperature.

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