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Anvisha [2.4K]
3 years ago
9

If both the pressure and volume of a given sample of an ideal gas are doubled, what happens to the temperature of the gas in Kel

vins? a)The temperature of the gas in increased by four times its original value. b)The temperature of the gas is reduced to one-half its original value. c)The temperature of the gas is reduced to one-fourth its original value. d) The temperature remains constant. e)The temperature of the gas is increased by two times its original value.
Physics
1 answer:
satela [25.4K]3 years ago
7 0

Answer:

a)The temperature of the gas in increased by four times its original value.

Explanation:

For a fixed amount of a gas, the ideal gas equation can be written as follows:

\frac{pV}{T}=const.

where

p is the gas pressure

V is the gas volume

T is the gas temperature (in Kelvins)

For a gas under transformation, the equation can also be rewritten as

\frac{p_1V_1}{T_1}=\frac{p_2V_2}{T_2}

where the labels 1,2 refer to the initial and final conditions of the gas.

In this problem, we have:

- The pressure of the gas is doubled: p_2 = 2p_1

- The volume of the gas is doubled: V_2=2V_1

Substituting into the equation, we find what happens to the temperature:

\frac{p_1V_1}{T_1}=\frac{(2 p_1)(2V_1)}{T_2}

\frac{1}{T_1}=\frac{4}{T_2}

T_2 = 4T_1

So, the correct choice is

a)The temperature of the gas in increased by four times its original value.

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tamaranim1 [39]

Answer:

D) Vertically.

Explanation:

A free body diagram is used to represent all the forces acting in a body. forces like, the force of gravity as a result of the gravitational interaction between the object and the Earth (W), the frictional force opposite to the movement of the object (F_{r}), the normal force due to the plane and the object (N) and the force applied to start the movement in a particular direction (F).

As is show in the free body diagram of the system, W, which is the weight of the body as a consequence of the gravitational force, is at an angle \theta below the inclined plane. that angle between the plane and the x axis is the same that the one of the inclined plane with respect to the horizontal, Since its sides are perpendicular.  

Notice how W goes always in the direction to the center of mass of Earth in a vertical path (For comparison see figure (a) and (b)).  

4 0
3 years ago
Radioactive carbon, or C-14, is used to date fossil remains. When C-14 decays, as seen in the nuclear equation, it produces what
olga nikolaevna [1]
The reaction of radiodecay of carbon C-14 is
C-14 --> N-14 + e- + (ve)
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3 years ago
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A person weighing 0.9 kN rides in an elevator that has a downward acceleration of 1.9 m/s^2. The acceleration of gravity is 9.8
Keith_Richards [23]

Answer:

The magnitude of the force is 0.7255kN

Explanation:

The elevator floor acts on the person with a force that is due to the gravitational acceleration less the downward acceleration of the elevator:

(force of floor F) = (mass of person m) x [ (grav. acceleration g) - (elevator acceleration a) ]

in other words, considering the elevator floor as a reference frame in the Earth's gravitational field, the person's weight decreases due to the downward acceleration, as follows:

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We are given the person's weight at rest, 0.9kN, from which the mass can be determined as:

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3 0
3 years ago
Please help
Mekhanik [1.2K]
Carbonate

as it it is made up of more than 1 type of ion.

'poly' means many
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irinina [24]

Answer:

Explanation:

Work = Force times displacement. Therefore,

W = 3150(75.5) so

W = 238000 N*m

6 0
2 years ago
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