CHEMISTRY HIGH SCHOOL

Marshall determines that a gas has a gage pressure of 276 kPa. What's the absolute pressure of this gas? A. 326 kPa
B. 156 kPa
C. 376 kPa
D. 176 kPa

Answers

Answer 1
Answer:

Answer: The absolute pressure is 376 kPa.

Explanation :

The absolute pressure of a gas is defined as the sum of gauge pressure and the atmospheric pressure.

We know that the atmospheric pressure of a gas is 101.3 kPa.

So, Absolute pressure becomes 276 kPa + 101.3 kPa = 377.3 kPa

Approximately it can be written as, 376 kPa.

So, the correct option is (C) " 376 kPa ".

Hence, this is the required solution.

Answer 2
Answer: C.... 376 tbh just took the test and was right

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Gases, fluids, and other solids in contact with a moving object will produce ____ due to friction. heat flow current electrical energy radiation

Answers

The correct answer among the options given is the first option. Gases, fluids, and other solids in contact with a moving object will produce heat flow due to friction. This is called heat transfer where heat energy is transferred from the high to low. As the particles in a substance collide, energy is transferred and others are dissipated in the form of heat.

Gases, fluids, and other solids in contact with a moving object will produce heat flow due to friction. This is called heat transfer where heat energy is transferred from the high to low.

Describe the motion of a ball being thrown straight up in the air in terms of kinetic and potential energy. as the ball rises up and falls back down, how is its kinectic and potential energy affected?

Answers

In your hand, the ball has higher potential energy than kinetic because it is still off of the ground but it isn't moving so there is no kinetic. As the ball rises, its potential and kinetic energy increases. At its peak, it has very high potential energy and very low kinetic energy. As it falls, the potential energy decreases but kinetic does not.

I have added 12.0 L of air.To a balloon at sea level(760 torr). If I take the ballon with me to Colorado, where the air pressure is 0.650 atm, what will the new volume of the balloon be?

Answers

Answer:

18.46 L

Explanation:

From the question given above, the following data were obtained:

Initial volume (V1) = 12.0 L

Initial pressure (P1) = 760 torr

Final pressure (P2) = 0.650 atm

Final volume (V2) =..?

Next, we shall express the pressure in the same unit of measurement.

Thus, 760 torr is equivalent to 1 atm.

Finally, we shall the new volume of the balloon as follow:

Initial volume (V1) = 12.0 L

Initial pressure (P1) = 1 atm

Final pressure (P2) = 0.650 atm

Final volume (V2) =..?

P1V1 = P2V2

1 × 12 = 0.650 × V2

12 = 0.650 × V2

Divide both side by 0.65

V2 = 12/0.65

V2 = 18.46 L

Therefore, the new volume of the balloon is 18.46 L.

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Answers

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Answer:

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Explanation:

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Answers

1 mole ------ 6.02 x 10²³ molecules
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hope this helps!

A radioactive nuclide is used to detect eye tumors. An atom of this radionuclide contains 15 protons, 15 electrons, and 17 neutrons. Which is symbol of this radionuclide?

Answers

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