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
sattari [20]
3 years ago
11

A cylinder contains 12liters of O2 at 20°c and 15atm. The temperature is raised to 35°c and volume is reduced to 8.5L. Calculate

the final pressure. What will be the new pressure if the volume is doubled
Physics
1 answer:
svet-max [94.6K]3 years ago
5 0

<h2>Pressure : 11 atmosphere</h2>

Explanation:

According to gas equation  P₁V₁/T₁ = P₂V₂/T₂

Where P₁ is the initial pressure , V₁ is the initial volume and T₁ is the initial temperature

P₂ is the final pressure , V₂ is the final volume and T₂ is the final temperature

Thus P₁ = 15 atmosphere  , V₁ = 12 liters and T₁ = 273 + 20 = 293 K

P₂ = ? , V₂ = 8.5 liters , T₂ = 273 + 35 = 308 K

From gas equation P₂ = P₁V₁T₂/T₁V₂ = 15 x 12 x 308/ 293 x 8.5

= 22.3 atmosphere .

If the volume is doubled

The gas equation will be P₁V₁ = P₂V₂ ;  because temperature is constant

Here V₂ = 2 V₁  therefore  pressure P₂ = P₁/2 = 22.3/2 = 11.1 atmosphere

You might be interested in
Why does the gravitational force between earth and moon predominate over electrical forces?
nadezda [96]

Answer:

Because the Earth and the Moon are electrically neutral

Explanation:

The gravitational force between the Earth and the Moon is given by

F=G\frac{mM}{r^2}

where G is the gravitational constant, m is the mass of the Moon, M is the mass of the Earth, r is the distance between the Moon and the Earth. Since both the Earth and the Moon have large masses, m and M are big, so the gravitational force between the two objects is large.

On the contrary, the electrostatic force between the Earth and the Moon is given by

F=k\frac{q_1 q_2}{r^2}

where k is the Coulomb's constant, q1 is the charge of the Moon, q2 is the charge of the Earth, r is the distance between the Moon and the Earth. However, big objects (and planets as well) are electrically neutral, which means that they have zero charge (because if they had charge, they would tend to attract charge of the opposite sign, becoming neutral again). Therefore, the values of q1 and q2 are approximately zero, so the electrostatic force is zero as well.

4 0
3 years ago
A Galilean telescope adjusted for a relaxed eye is 36.2 cm long. If the objective lens has a focal length of 39.5 cm , what is t
GuDViN [60]

Answer:

The magnification is  m =  12

Explanation:

From the question  we are told that

   The object distance is u  = 36.2 \ cm

     The focal length is  v  =  39.5 \ cm

From the lens equation we have that

         \frac{1}{f}  =  \frac{1}{u} +  \frac{1}{v}

=>     \frac{1}{v}  =  \frac{1}{f}  - \frac{1}{u}

substituting values

       \frac{1}{v}  =  \frac{1}{39.5}  - \frac{1}{36.2}

       \frac{1}{v}  =  -0.0023

=>   v =  \frac{1}{0.0023}

=>   v =-433.3 \ cm

The magnification is mathematically represented as

         m =-   \frac{v}{u}

substituting values

        m =-   \frac{-433.3}{36.2}

         m =  12

         

6 0
2 years ago
A solenoid of length 10 cm has 247 turns and a magnetic field at the center of 1.2 T. What is the current through the solenoid?
elena55 [62]

Answer:

386.6 A

Explanation:

We are given;

Solenoid length; L = 10 cm = 0.1 m

Number of turns; N = 247

Magnetic field; B = 1.2 T

Now, at the centre of a long solenoid of N turns/metre carrying a current(I), the formula for the magnetic field is given as;

B = μ_oNI/L

Making I the subject we have;

I = BL/μ_oN

Where μ_o is the vacuum of permeability and has a constant value of 4π × 10^(−7) H/m

Thus;

I = (1.2 × 0.1)/(4π × 10^(−7) × 247)

I = 386.6 A

6 0
3 years ago
Three equal 1.60-μCμC point charges are placed at the corners of an equilateral triangle with sides 0.800 mm long. What is the p
Pepsi [2]

Answer:

= 0.086J

Explanation:

we are given three equal charges q₁ q₂ q₃ = 1.60 μC

sides of triangle = 0.800m

U = 1/4πε₀(3q²/r)

1/4πε₀ = 9.0 × 10⁹ N.m²/C²

U = 9.0 × 10⁹ ((3 * 1.60 × 10⁻⁶)² / (0.800))

= 0.086J

3 0
3 years ago
How do you find out the missing masses in a balloon
Mamont248 [21]

Answer:

How do you find out the missing masses in a balloon?

Well, actually you can't find the missing masses in a balloon. Why?

Because the mass of the mass of balloon, it can't see the mass of it, it only see if it the balloon is deflated or inflated.

Explanation:

Hope it helps

#LetsStudy

7 0
3 years ago
Other questions:
  • A car of mass m, traveling at speed v, stops in time t when maximum braking force is applied. Assuming the braking force is inde
    8·1 answer
  • How do i round decimals in physics.
    6·1 answer
  • Which state law would be considered unconstitutional based on the Fourteenth Amendment?
    5·1 answer
  • Water at the top of Horseshoe Falls (part of Niagara Falls)
    6·1 answer
  • A 35.0-cm-diameter circular loop is rotated in a uniform electric field until the position of maximum electric flux is found. Th
    5·1 answer
  • What does this picture show?
    13·1 answer
  • An advertisement for a new fish food claims that lab studies show that fish grew three inches in three weeks while eating the fo
    8·1 answer
  • Hearing the siren of an approaching fire truck, you pull over to the side of the road and stop. As the truck approaches, you hea
    14·1 answer
  • A 225kg race horse runs around the track with an acceleration or 13m/s2. What is the force needed by the horse?
    7·1 answer
  • 10
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!