What is the relationship between volume and pressure for a gas?

Chemistry

1 answer:

QveST [7]4 years ago

8 0

Answer:

There exists a relationship between pressure and volume through Boyle's Law. It states that when temperature is held constant in thermodynamic syatems, the volume increases as the pressure decreases (and is true the other way around).

Hope this helps :)

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Reaction: 2 N20 --> 2 N2 + O2, how many moles of nitrogen gas will be

ELEN [110]

Answer:

Number of moles of nitrogen gas = 9.84 mol

Explanation:

Given data:

Number of moles of nitrogen gas = ?

Number of moles of dinitrogen monoxide = 9.84 mol

Solution:

Chemical equation:

2N₂O → 2N₂ + O₂

Now we will compare the moles of N₂O and N₂

N₂O : N₂

2 : 2

9.84 : 9.84

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3 years ago

Which of the following is not an oxidation-reduction reaction?

Art [367]

Answer: option C. NaCl + LiNO₃ ---> NaNO₃ + LiCl

Explanation:

1) An oxidation-reduction reaction is the oxidation of at least one element and the reduction of at least one element.

2) Oxidation is the increase of the oxidation number, due to the loss of electrons.

3) Reduction is the reduction of the oxidation number, due to the gain of electrons.

4) You can tell whenever a reaction is an oxidation-reduction by observing the oxidation numbers: if two elements changed its oxidation number (one increases and one reduces) it is an oxidation - reduction, else it is not.

5) Oxidation numbers:

i) NaCl

Na: 1+, Cl: 1-.

ii) LiNO₃

Li: 1+, N: 5+, O: 2-

iii) NaNO₃

Na: 1+, N: 5+, O: 2-

iv) LiCl

Li: 1+, Cl: 1-.

There you have that the oxidation numbers of the five elements (Na, N, O, Li, and Cl) remained unchanged.

None element was reduced and none element was oxidized, so you conclude that this is not an oxidation-reduction reaction.

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