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Brut [27]
3 years ago
11

10 points. Please help.

Chemistry
2 answers:
lana66690 [7]3 years ago
8 0

Answer:

The temperature is 81.3 K.

Explanation:

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P*V = n*R*T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

In this case:

  • P= 2.5 atm
  • V= 8 L
  • n=3 moles
  • R= 0.082 \frac{atm*L}{mol*K}
  • T= ?

Replacing:

2.5 atm* 8 L= 3 moles* 0.082 \frac{atm*L}{mol*K} *T

Solving:

T=\frac{2.5 atm* 8 L}{3 moles* 0.082\frac{atm*L}{mol*K}}

T= 81.3 K

<u><em>The temperature is 81.3 K.</em></u>

ratelena [41]3 years ago
6 0

Answer:

-191.7°C

Explanation:

P . V = n . R . T

That's the Ideal Gases Law. It can be useful to solve the question.

We replace data:

2.5 atm . 8 L = 3 mol . 0.082 L.atm/mol.K . T°

(2.5 atm . 8 L) / (3 mol . 0.082 L.atm/mol.K) = T°

T° = 81.3 K

We convert T° from K to C°

81.3K - 273 = -191.7°C

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<h3>What is an ideal gas equation?</h3>

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Using equation PV=nRT, where n is the moles and R is the gas constant. Then divide the given mass by the number of moles to get molar mass.

Given data:

P= 3.00 atm

V= ?

n=0.205 mole

R= 0.082057338 \;L \;atm \;K^{-1}mol^{-1}

T=200 K

Putting value in the given equation:

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Learn more about the ideal gas here:

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