Next Step 3 Chem/Phys Flashcards

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1
Q

Pulmonary surfactant does what?

A

Decrease surface tension and this decreases the pressure difference required to inflate the airway.

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2
Q

What is the Gibbs free energy equation?

A

Change G= Change H - T • change S

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3
Q

What are the azimuthal quantum number for a Beryllium atom for a Boron?

A

Being that Be is 1s2, 2s2 making it a s-type orbital the quantum number is l=0 and Boron being configuration 1s2, 2s2, 2p1 making it a p-type orbital the quantum number is l=1

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4
Q

The high-energy radiation produced by gamma rays has sufficient energy to?

A

Generate free radicals, excite electrons to higher energy levels, and eject electrons from molecular orbitals.

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5
Q

Which hybridize orbital electrons are the hardest to remove?

A

The hardest to remove would be sp- hybridized due to the their higher S character pulling the electrons closest to the nucleus.

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6
Q

A person pushes horizontally on a 50-kg crate, causing it to the accelerate from rest and slide across the surface. If the push causes the crate to accelerate at 2.0m/s^2, what is the velocity of the crate after the person has pushed the crate a distance of 6 meters?

A

Vf^2= Vi^2+2ad

Vf^2=0^2+ 2•2•6

Vf^2= 24

V= 5 approx

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7
Q

Alkali metals have the largest what?

A

Alkali metals have the largest atomic radii of the periodic table

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