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ANTONII [103]
3 years ago
7

What is an astronomical unit?

Chemistry
1 answer:
Viktor [21]3 years ago
4 0

Answer:

a unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.

Explanation:

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The core is the layer of the sun from which energy escapes into space.
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3 years ago
The air in a 4.00 L tank has a pressure of 1.20 atm . What is the final pressure, in atmospheres, when the air is placed in tank
stellarik [79]

Answer:

P₂ = 1.92 atm

Explanation:

According to the boyle's law:

The pressure of given amount of gas at constant temperature and number of moles of gas is inversely proportional to the volume.

P₁V₁= P₂V₂

Given data:

Initial volume = 4.00 L

Initial pressure = 1.20 atm

Final volume = 2500  mL  

Final pressure = ?

Solution:

First of all we will convert the volume into litter.

2500 mL × 1L/1000 mL = 2.5 L

P₁V₁ =  P₂V₂

P₂ = P₁V₁ /V₂

1.20 atm×4.00 L = P₂ ×2.5 L

P₂ = 1.20 atm×4.00 L/ 2.5 L

P₂ = 4.8 atm. L/ 2.5 L

P₂ = 1.92 atm

4 0
3 years ago
Mass and volume can be used to describe what general property?
Wittaler [7]
3 dimensional figure
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Characterized mixture water + sulfur?
Vadim26 [7]
I think this is what your talking about.

5 0
4 years ago
a certain quantity of gas occupies 20l at 50°c and pressure of 2 atm.at what pressure will the volume of the gas will be occupy
Ilia_Sergeevich [38]

Answer:

20atm

Explanation:

according to boyles law P1V1= P2V2

3 0
3 years ago
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