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
GrogVix [38]
3 years ago
9

A quantity of a gas has an absolute pressure of 400 kPa and an absolute temperature of 110 degrees kelvin. When the temperature

of the gas is raised to 235 degrees kelvin, what is the new pressure of the gas? (Assume that there's no change in volume.)
a. 3.636 kPa
b. 854.46 kPa
c. 1.702 kPa
d. 510 kPa
Physics
1 answer:
shepuryov [24]3 years ago
4 0

You can make sure there's no change in volume by keeping
your gas in a sealed jar with no leaks.  Then you can play with
the temperature and the pressure all you want, and you'll know
that the volume is constant.

For 'ideal' gases,

       (pressure) times (volume) is proportional to (temperature).

And if volume is constant, then

                 (pressure) is proportional to (temperature) .

So if you increase the temperature from 110K to 235K,
the pressure increases to  (235/110)  of where it started.

     (400 kPa) x (235/110)  =  854.55 kPa. (rounded)

Obviously, choice-b is the right one, but
I don't know where the .46 came from.
 
You might be interested in
You are approaching a helicopter on a helipad in an ambulance. The helicopter is powered down and the blades are not spinning. A
Maksim231197 [3]

After notifying the PIC of your arrival, it is best to approach the sides of the helicopter in this scenario.

<h3>What is an Ambulance?</h3>

This is a vehicle which contains medical equipments and are involved in the transportation of patients to healthcare facilities.

It is best to approach the sides of the helicopter and not tail rotor end to ensure visibility and safety.

Read more about Ambulance here brainly.com/question/16612316

#SPJ1

7 0
2 years ago
Motion is a change in direction. True or False?
Otrada [13]
False... motion is a change in position. Not direction
3 0
3 years ago
Read 2 more answers
What happens to the electrostatic force between two charged particles if the distance between them is doubled?
Stells [14]

According to Coulomb's Law , The size of the force varies inversely as the square of the distance between the two charges. So ,if the distance between the two charges is doubled, the  electrostatic force will become weak by one fourth of the original force.

5 0
3 years ago
An electron is released from rest on the axis of a uniform positively charged ring, 0.200 m from the ring's center. If the linea
melisa1 [442]

Answer:

Velocity of the electron at the centre of the ring, v=1.37\times10^7\ \rm m/s

Explanation:

<u>Given:</u>

  • Linear charge density of the ring=0.1\ \rm \mu C/m
  • Radius of the ring R=0.2 m
  • Distance of point from the centre of the ring=x=0.2 m

Total charge of the ring

Q=0.1\times2\pi R\\Q=0.1\times2\pi 0.4\\Q=0.251\ \rm \mu C

Potential due the ring at a distance x from the centre of the rings is given by

V=\dfrac{kQ}{\sqrt{(R^2+x^2)}}\\

The potential difference when the electron moves from x=0.2 m to the centre of the ring is given by

\Delta V=\dfrac{kQ}{R}-\dfrac{kQ}{\sqrt{(R^2+x^2)}}\\\Delta V={9\times10^9\times0.251\times10^{-6}} \left( \dfrac{1}{0.4}-\dfrac{1}{\sqrt{(0.4^2+0.2^2)}} \right )\\\Delta V=5.12\times10^2\ \rm V

Let\Delta U be the change in potential Energy given by

\Delta U=e\times \Delta V\\\Delta U=1.67\times10^{-19}\times5.12\times10^{2}\\\Delta U=8.55\times10^{-17}\ \rm J

Change in Potential Energy of the electron will be equal to the change in kinetic Energy of the electron

\Delta U=\dfrac{mv^2}{2}\\8.55\times10^{-17}=\dfrac{9.1\times10^{-31}v^2}{2}\\v=1.37\times10^7\ \rm m/s

So the electron will be moving with v=1.37\times10^7\ \rm m/s

5 0
3 years ago
Ice floats on water.​
OleMash [197]

Answer:

Yeah ice floats on water.

Observation

Example in those areas were ice is found like Antarctica ice is found on top of water.

5 0
3 years ago
Other questions:
  • Which of these actions is an example of chemical weathering? A. Freezing water widens the cracks in rocks B. plant roots force t
    12·1 answer
  • A heavy flywheel rotating on its central axis is slowing down because of friction in its bearings. At the end of the first minut
    15·1 answer
  • Astronomers analyze starlight to determine a star’s (a) temperature; (b) composition; (c) motion; (d) all of the above.
    10·1 answer
  • A large stick is pivoted about one end and allowed to swing back and forth with no friction as a physical pendulum. The mass of
    6·1 answer
  • When a projecting load extends to the rear four or more feet beyond the bed or body of a vehicle in the daytime, the extreme rea
    14·2 answers
  • Ptolemy suggested that the Earth was at the center of the solar system. Copernicus suggested that the sun was at the center of t
    7·1 answer
  • A note on a piano vibrates 262 time per second. What is the period of the wave
    13·1 answer
  • A 5.0 Ω resistor is hooked up in series with a 10.0 Ω resistor followed by a 20.0 Ω resistor. The circuit is powered by a 9.0 V
    8·1 answer
  • The first law of motion is also called as law _ fill up the blanks ​
    10·1 answer
  • what happens to the frequency the centripetal force on an object in circular motion is doubled while the object keeps the same r
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!