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3 years ago

Which of the following actions will lead to a decrease in pressure?

Chemistry

2 answers:

Alex Ar [27]3 years ago

6 0

The action that would most likely lead to. Decrease in volume is decrease in temperature.

tekilochka [14]3 years ago

6 0

Answer: The correct answer is decreasing temperature.

Explanation:

The relation between pressure, temperature, volume and number of moles of gas is given by the equal known as ideal gas equation:

$PV=nRT$

or,

$P=\frac{nRT}{V}$

where,

P = Pressure of the gas

V = Volume of the gas

n = Number of moles of gas

R = Gas constant

T = Temperature of gas

From the above relation, it is visible that pressure is directly related to number of moles and temperature of the gas. So, if pressure decreases, the number of moles and temperature of the gas also decreases.

Also, pressure is inversely related to volume of the gas. So, if pressure gets decreased, the volume of the gas must increase.

And, pressure is directly related to number of collisions of the particles. Thus, if the pressure decreases, this means that number of collisions between the particles must also decrease.

Hence, the correct answer is decreasing temperature.

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3 years ago

The rate law of a reaction is rate = k[D][X]. The units of the rate constant are ________.

bogdanovich [222]

Answer:

Explanation:

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2 years ago

Upon heating a copper sample will expand, leading to a lower density? A) True B) False

Leona [35]

Answer;

The above statement is true

upon heating a copper sample will expand, leading to a lower density

Explanation;

-The density of solids decreased with increase in temperature and vice versa. The increase in temperature causes the volume of the solid to increase which as a result decreases the density as Density=Mass/Volume. The temperature of a body is the average kinetic energy of the molecules present in it.

In other words; The temperature of a body is the average kinetic energy of the molecules present in it. Therefore; when heat is supplied ( or temperature is increased) the average kinetic energy increases which increases the volume and thus density decreases.

8 0

3 years ago

Can anyone help with 5 through 8? Please :(

Aleksandr [31]

Answer:

The answer to your question is below

Explanation:

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7) 2NO₂ (g) ⇒ 2O₂ (g) + N₂ (g) Decomposition reaction

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2 years ago

The model below shows an atom of an element. 9 light grey and 8 dark grey balls sit at the center with 2 concentric black rings

aleksley [76]

Answer:

sorry if this is a bit late but i know what your talking about and your answer would be 8

stay happy!!

3 0

3 years ago

Read 2 more answers