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3 years ago

What is the pressure of 2.0 mol nitrogen (N2) gas in a 0.5 L container at 310 K?

Chemistry

1 answer:

emmainna [20.7K]3 years ago

7 0

Answer:

10.304 kPa

Explanation:

n=mol nitrogen (N2) gas=2moles

Temperature=T=310 K

Volume=0.5 L=0.5 dm3

R=8.31 J K−1 mol−1

From Gerenal gas equation we know that

PV=nRT

P=nRT/V

Putting the values

P=(2*8.31*3100/(0.5)

P=10.304 kPa

or P=10304 Pa

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Which of the following statements is FALSE:O Density is a measure of how closely packed the atoms of a substance are.O The Densi

monitta

Answer

The Density of a substance can change if its location changes.

Explanation

All the statements are TRUE except

The Density of a substance can change if its location changes.

This is because density is an intensive property, that is regardless of the object's shape, size, or quantity, the density of that substance will always be the same. Even if you cut the object into a million pieces, they would still each have the same density.

Therefore, the statement that is FALSE is

The Density of a substance can change if its location changes.

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1 year ago

Order the terms according to the path followed by oxygen during cellular respiration.

MArishka [77]

Answer:

Outside air

Nose

Lungs

Bloodstream

Cell

Explanation:

We breathe in oxygen from the outside air in through our nose and it travels to our lungs. Inside our lungs, we have Avioli's that diffuse oxygen into our bloodstream and the bloodstream helps the oxygen travel into our cells.

Hope this helps :)

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3 years ago

Many people in South America are subsistence farmers. Subsistence farming is...

galben [10]

growing only enough crops for food to fed the family

Explanation:

subsistence farming is the practice of growing crops only for own use .. some developing countries are only doing farming for their personal use so they are in the stage of developing ..in a country like nepal we not being able to trade our farming .if we want to export then also we arenot getting the good market ..

8 0

3 years ago

Read 2 more answers

Select the correct answer. Which of these elements is a transition metal?

PtichkaEL [24]

I don't see the options for an answer, so here is a list of all of the transition metals lol