A gas has an initial volume of 2.5 L at a temperature of 275 K and a pressure of 2.1 atm. The pressure of the gas increases to 2.7 atm, and the temperature of the gas increases to 298 K.The final volume of the gas, rounded to the nearest tenth, is.

Answers

Answer 1
Answer: The following information are given:
V1 = 2.5L
T1 = 275K
P1 = 2.1 atm
T2 = 298K
P2 = 2.7 atm
V2 = ?
The formular for solving the equation is: P1V1T1 = P2V2T2
V2 = P1V1T1/P2VT2
V2 = 2.5 * 275 * 2.7 * 298 = 1443.75/804.6 = 1.794
Therefore, V2 = 1.8L.
Answer 2
Answer:

Its 2.1, I just took the test, the verified answer is wrong.


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Answers

if under vacuum the terminal velocity of the egg and feather would be the same because only the acceleration due to gravity is only force acting on it. but at normal condition, their terminal velocity are different because to wind resistance and shape factor that will contribute resistance of an object to go down.

Answer:

The terminal velocities will be the same in a vacuum and different for the egg and further.

Explanation:

Thinking process:

The terminal velocity is the maximum velocity that an object can attain after overcoming the resistance caused by the atmosphere or air. In other words, the velocity equation is given as:

F_(net)  = D -W

where F is the net force,

D = Drag force

W = Weight of the object falling down.

The drag force increases by the increase with the square of the velocity like this:

W = C_(d) \frac{\rhoV^(2)A  } {2}

The terminal velocity is given by the equation:

V = Sqrt (2W/CdpA)

In the absence of friction, like a vacuum, the velocities are the same.

In the atmosphere, there is drag, and the velocities are different.

The particles of a gas are actually _____. electrons or protons protons or neutrons atoms or elements atoms or molecules

Answers

Answer

atoms or molecules

Explanation

A pure gas such as argon or neon is made up of individual atoms. Other compound gasses such as oxygen or carbon dioxide are made up of elements.

Protons, neutrons and electrons are parts of an atom. They are not actually particles but charges.

The answer to the question is atoms or molecules.


The answer is the last option atoms or molecules

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Answers

'Gram', 'kilogram', and 'metric ton' are units of mass, not weight.

'Pound' can be either a unit of mass or of force.  Most people
use it most of the time to mean weight.

Answer:

the answer is pounds

Explanation:

A submarine is 46 m below sea level, and it descends 24 m. How far below sea level is it? a. The submarine is 70 m below sea level. b. The submarine is 46 m below sea level. c. The submarine is 24 m below sea level. d. The submarine is 94 m below sea level.

Answers

Answer:70 m below

Explanation:

46 +24= 70

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Answers

The area under the graph. W = f d cos(theta), so you want the number that is force times displacement, which corresponds to the area under the graph.

What is the weight, on Earth, of a book with a mass of 1.5 kg

Answers

Answer: 14.7 N

Explanation:

The weight of an object on Earth is given by

W=mg

where

m is the mass of the object

g=9.81 m/s^2 is the acceleration due to gravity on Earth's surface

In this problem, we have a book of mass m=1.5 kg, so its weight is given by

W=mg=(1.5 kg)(9.81 m/s^2)=14.7 N

The answer is
D) 14.7 N