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Sholpan [36]
3 years ago
8

Thats wrong because i was taking a test and that was wrong its b

Chemistry
1 answer:
djyliett [7]3 years ago
6 0
What do you mean do you need hekp?

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A sample of nitrogen gas expands in volume from 16 L to 5.4 L at constant
xxTIMURxx [149]

a. W = 0 J

b. W = - 308.028 J

<h3>Further explanation</h3>

Given

Nitrogen gas expands in volume from 1.6 L to 5.4 L

Required

The work done

Solution

Isothermal :

W = -P . ΔV

Input the value :

a. At a vacuum, P = 0

So W = 0

b. At pressure = 0.8 atm

W = - 0.8 x ( 5.4 - 1.6)

W = -3.04 L.atm ( 1 L.atm = 101.325 J)

W = - 3.04 x 101.325

W = - 308.028 J

6 0
3 years ago
Which of the following is an example of how a scientist might use a model?
tiny-mole [99]
I am thinking it is c) A microscope is used to magnify a group of cells on a slide. 
7 0
3 years ago
Which will dissolve faster in water rock salt or granulated salt
Sladkaya [172]

Answer:

Salt!!!

Explanation:

7 0
3 years ago
A scientist finds that one volume of an unknown gas X combines with two volumes of another gas Y to form two volumes of a new ga
MariettaO [177]

Answer:

Gas X

Explanation:

The given reaction can be written in the form of chemical equation as shown below as:

X+2Y\rightarrow 2XY_2

According to law of conservation of mass, the moles of each substance in the reaction must be equal on both reactant and product side.

Also, the question asks for the gas which is diatomic. XY_2 cannot be diatomic as the formula contains 3 atoms.

Between gas X and gas Y , <u>X has to be diatomic for the reaction to balance </u>as:

X_2+2Y\rightarrow 2XY_2

3 0
3 years ago
Please select the word from the list that best fits the definition
AveGali [126]

Answer:

I choose D option because may be it's correct

3 0
2 years ago
Read 2 more answers
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