1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tatyana61 [14]
3 years ago
11

A 1.50 liter flask at a temperature of 25°C contains a mixture of 0.158 moles of methane, 0.09 moles of ethane, and 0.044 moles

of butane. What is the total pressure of the mixture inside the flask?
Physics
1 answer:
Julli [10]3 years ago
7 0
Applying the general gas equation : PV=nRT
V = 1.50 litres
R = <span>0.08205746 L atm/K mol
T = </span><span>25°C = 25+273 = 298 K
n = </span>0.158 moles+0.09 moles+<span> 0.044 moles = 0.292 moles
</span><span>Re arranging the equation:
P = nRT / V = (0.158 + 0.09 + 0.044) mol x (0.08205746 L atm/K mol)
 x (25 + 273)K / (1.50 L)
= 4.76 atm
= 482 kPa
= 3617 mmHg</span>
You might be interested in
Rock X is released from rest at the top of a cliff that is on Earth. A short time later, Rock Y is released from rest from the s
frosja888 [35]

Answer:

C) True. S increases with time, v₁ = gt and v₂ = g (t-t₀)  we see that for the same t v₁> v₂

Explanation:

You have several statements and we must select which ones are correct. The best way to do this is to raise the problem.

Let's use the vertical launch equation. The positive sign because they indicate that the felt downward is taken as an opponent.

Stone 1

    y₁ = v₀₁ t + ½ g t²

    y₁ = 0 + ½ g t²

Rock2

It comes out a little later, let's say a second later, we can use the same stopwatch

     t ’= (t-t₀)

    y₂ = v₀₂ t ’+ ½ g t’²

    y₂ = 0 + ½ g (t-t₀)²

    y₂ = + ½ g (t-t₀)²

Let's calculate the distance between the two rocks, it should be clear that this equation is valid only for t> = to

    S = y₁ -y₂

    S = ½ g t²– ½ g (t-t₀)²

    S = ½ g [t² - (t²- 2 t to + to²)]  

    S = ½ g (2 t t₀ - t₀²)

    S = ½ g t₀ (2 t -t₀)

This is the separation of the two bodies as time passes, the amount outside the Parentheses is constant.

For t <to.  The rock y has not left and the distance increases

For t> = to.  the ratio (2t/to-1)> 1 therefore the distance increases as time

passes

Now we can analyze the different statements

A) false. The difference in height increases over time

B) False S increases

C) Certain s increases with time, v₁ = gt and V₂ = g (t-t₀) we see that for the same t   v₁> v₂

3 0
3 years ago
How can water boil without heat?​
kaheart [24]

Answer:

Put water at room temperature into a vacuum chamber and begin removing the air. Eventually, the boiling temperature will fall below the water temperature and boiling will begin without heating. Or if you want to be easy but messy, add dry ice to a bowl of water and watch how the water starts to boil.

3 0
2 years ago
Could I please get some help l, will mark as Brianalist if right....​
miss Akunina [59]

Answer:

Option 2

Explanation:

Weight of the box is being acted downwards due to gravity

However, based on Newton's third law (for every action (force) in nature there is an equal and opposite reaction), an equal force will act on the box by the table

8 0
2 years ago
Read 2 more answers
A 10.0kg water balloon is dropped from a height of 12.0m. Calculate the speed of the balloon just before it hits the ground
kolbaska11 [484]

Answer:

15.5 m/s.

Explanation:

Potential energy of the balloon has been converted to kinetic energy.

potential energy = kinetic energy.

mgh = ½mv².

10* 10* 12= ½ *10 *v²

1200 = 5v²

v²=1200÷5

v=√240

v= 15.49~15.5 m/s.

5 0
2 years ago
Nuclear reactions have many useful applications, but they also have harmful biological effects.
Katarina [22]

True

Explanation:

Nuclear reactions have many useful applications but they also have harmful biological effects. Nuclear reactions are that occurs in the nucleus of an atoms. They differ from chemical reactions which occurs using valence electrons.

Some uses of nuclear reactions:

  • They are used for cancer therapy
  • Radioactive tracers.
  • Production of energy
  • Radiometric dating

Some harmful effects:

  • Uncontrolled nuclear reactions can lead to nuclear wastes in the environment.
  • They are used in manufacturing nuclear weapons.
  • They cause destruction of living cells because they produce ionizing radiations.

Learn more;

Nuclear reactions brainly.com/question/2948717

#learnwithBrainly

5 0
3 years ago
Other questions:
  • A sheet of gold leaf has a thickness of 0.125 micrometer. A gold atom has a radius of 174pm. Approximately how many layers of at
    11·1 answer
  • If Abdul pedals his 20 kg bike with a force of 100 N, what will the bike’s acceleration be? The formulas above may be helpful in
    14·1 answer
  • If the lily pads are spaced 2.4 m apart and Ferdinand jumps with a speed of 5 m/s taking 0.6 s to go from lily pad to lily pad,
    12·1 answer
  • What is the change in potential energy of an energetic 72 kg hiker who makes it from the floor of death valley to the top of mt.
    12·1 answer
  • Without effective assessment methods, teachers have no documented proof of childrens specific ____ and _____.
    9·1 answer
  • How much work does the electric field do in moving a proton from a point with a potential of +130 V
    9·1 answer
  • PLEASE help me with this science question.
    10·2 answers
  • What two gases probably dominated precambrian earth's atmosphere?
    7·1 answer
  • When a parachutist jumps from an airplane, he eventually reaches a constant speed, called the terminal speed. Once he has reache
    15·1 answer
  • Write a paragraph comparing one bulb in series, two bulbs in series, and two bulbs in parallel. What did you learn?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!