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Afina-wow [57]
3 years ago
7

A sample of helium (He) occupies 8.0 liters at 1 atm and 20.0◦C. What pressure is necessary to change the volume to 1.0 liters a

t 10.0◦C?
Physics
1 answer:
nevsk [136]3 years ago
7 0

Apply the combined gas law

PV/T = const.

P = pressure, V = volume, T = temperature, PV/T must stay constant.

Initial PVT values:

P = 1atm, V = 8.0L, T = 20.0°C = 293.15K

Final PVT values:

P = ?, V = 1.0L, T = 10.0°C = 283.15K

Set the PV/T expression for the initial and final PVT values equal to each other and solve for the final P:

1(8.0)/293.15 = P(1.0)/283.15

P = 7.7atm

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Answer:

490.5\ \text{N/m}

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The force balance of the system is given by

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The spring constant for that spring is 490.5\ \text{N/m}.

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Part 1

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Part 2

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4 0
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Lilit [14]
Electrons: negative charge
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The atom would have to have more electrons than protons

Hope this helps :)
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A cube with sides of length 2cm has a mass of 7.36g . calculate the density of the cube
kondor19780726 [428]
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