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3 years ago

In a rigid container, as the temperature of a gas decreases, the pressure of the gas will decrease. t f

2 answers:

6 0

The answer is true: the pressure of a gas will decrease as temperature decreases in a rigid container.

This is one of the central gas laws called the Gay-Lussac law that states for a given gas at a constant volume, the pressure of the gas is directly proportional to its temperature. We also know that as temperature reduces, so too does molecular interaction. Increased temperature results in increased pressure, and decreased temperature therefore results in decreased pressure.

LenaWriter [7]3 years ago

5 0

True please mark brainly

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motikmotik

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3 years ago

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A population of deer is defined by:

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3 years ago

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Which of these is a mixture of elements?

Veseljchak [2.6K]

-- Carbon dioxide is a compound of two elements.

-- Salt is a compound.
Pepper is a mixture of compounds.
Salt and pepper together in a shaker is a mixture of more compounds.

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3 years ago

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A 25. 00 ml sample of acetic acid containing phenolphthalein indicator is titrated with 0. 1067 m naoh. The solution changes col

Semenov [28]

The concentration of the acetic acid:

The concentration of the acetic acid before titration is 0.128M

Reaction of phenolphthalein with NaOH:

The sodium hydroxide will start interacting with phenolphthalein as soon as enough sodium hydroxide has been added to the acetic acid such that there is no longer any unreacted acetic acid. Pink solution is produced when phenolphthalein and sodium hydroxide combine.

Calculation:

<u>The balanced equation:</u>

CH₃COOH + NaOH ⇒ CH₃COONa + H₂O

<u>Given:</u>

Quantity of NaOH = 0.1067 M

Volume of NaOH = 30.07 ml

= 30.07 / 1000

= 0.03007 L

For weak acid and strong base titration = Moles of acetic acid = moles of NaOH

Moles of NaOH = concentration X volume

0.1067 X 0.03007 = 0.0032

Thus, moles of acetic acid = 0.0032mole,

By employing the formula,

Concentration = Moles/Volume

= 0.0032/0.025

= 0.128M

Learn more about the concentration of acetic acid here,

brainly.com/question/15065009

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2 years ago

Your bedroom has a rectangular shape, and you want to measure its area. You use a tape that is precise to 0.001 and find that th

Anarel [89]

Answer:

(a) $17.0 m^{2}$

(b) $31.4 m^{2}$

Explanation:

(a)

The result obtained by multiplying two values which are having different precision has to express in the precision of the least precise number. So among the given values 4.79 is the least precise value; hence round off the result to 3 significant figures. For a rectangular room, area is a product of length and width, here, l is length and b is width/breadth

$Area=lb=4.79*3.547=16.9901\approx 17.0 m^{2}$

(b)

Following the same rules mentioned in part a of the question

For circular shaped bedroom, area $A={\pi (d/2)^{2}}$

$A=\pi\times (6.32/2)^{2}=31.37 m^{2}\approx 31.4 m^{2}$

The diameter of the circular room is 6.32, this is the least precise value used to calculate the area, so round off the final result to 3 significant figures

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3 years ago