2 years ago

When the temperature of a substance _, the motion of the atoms that make up that substance _.

Chemistry

1 answer:

Mkey [24]2 years ago

7 0

Increase in temperature makes the atoms speed up, and decrease in temperature makes the atoms move slower.

You might be interested in

A mixture of gases with a pressure of 800.0 mm hg contains 60% nitrogen and 40% oxygen by volume. what is the partial pressure o

klasskru [66]

Hello!

We have the following statement data:

Data:
$P_{Total} = 800 mmHg$
$P\% N_{2} = 60\%$
$P\% O_{2} = 40\%$
$P_{partial} = ? (mmHg)$

As the percentage is the mole fraction multiplied by 100:

 $P = X_{ O_{2} }*100$

The mole fraction will be the percentage divided by 100, thus:
What is the partial pressure of oxygen in this mixture?

$X_{ O_{2} } = \frac{P}{100}$
$X_{ O_{2}} = \frac{40}{100}$
$\boxed{X_{ O_{2}} = 0.4}$

To calculate the partial pressure of the oxygen gas, it is enough to use the formula that involves the pressures (total and partial) and the fraction in quantity of matter:

In relation to $O_{2}$ :

$\frac{P O_{2} }{P_{total}} = X_O_{2}$
$\frac{P O_{2} }{800} = 0.4$
$P_O_{2} = 0.4*800$
$\boxed{\boxed{P_O_{2} = 320\:mmHg}}\end{array}}\qquad\quad\checkmark$

Answer:
b. 320.0 mm hg

7 0

3 years ago

Determine the identity of a cube of metal that measures 1.2 cm on each side and has a mass of 15.4g.

FromTheMoon [43]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
density 15.4 grams per 1.2³ cm³ ≅ 8.9 grams per cm³
Find the metal that has a density of approximately 8.9 g/cm³

8 0

2 years ago

Read 2 more answers

Under the proper conditions, bromomethane (ch3br) will react with potassium hydroxide (koh) to form _____ and a salt. methanol (

Luden [163]

Methanol (ch3oh) i believe.

7 0

2 years ago

Read 2 more answers

A mass of 2.20 kg of sodium phosphate is converted number of moles

Paladinen [302]

Explanation:

here's the answer to your question

3 0

2 years ago

What mass of aluminum chloride could be made from 8.1 g of aluminum and 4.2 L of chlorine at STP?

posledela

In this problem Al metal is a limiting reactant as it is present in less amount as compared to chlorine gas, Hence, controls the formation of ALCl3. So, the amount of AlCl3 produced is 40.05 grams. Solution is as follow,

3 0

3 years ago

When the temperature of a substance _____, the motion of the atoms that make up that substance _____.

When the temperature of a substance _, the motion of the atoms that make up that substance _.