If you decreased the volume of a sample of gas by a factor of three while maintaining a constant pressure, how would the absolute temperature of the gas be affected? A gas at 300 K and 4.0 atm is moved to a new location with a temperature of 250 K. The volume changes from 5.5 L to 2.0 L. What is the pressure of the gas at the new location?

What is the partial pressure of 0.50 mol Ne gas combined with 1.20 mol Kr gas at a final pressure of 730 torr?

**Check for proof photos at the bottom.**

**Answers are in bold.**

__________________________________________________________

If you decreased the volume of a sample of gas by a factor of three while maintaining a constant pressure, how would the absolute temperature of the gas be affected?  

✔ it would decrease threefold

A gas at 300 K and 4.0 atm is moved to a new location with a temperature of 250 K. The volume changes from 5.5 L to 2.0 L. What is the pressure of the gas at the new location?  

✔ 9.2 atm

What is the partial pressure of 0.50 mol Ne gas combined with 1.20 mol Kr gas at a final pressure of 730 torr?  

✔ 215 torr

__________________________________________________________

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?  

✔ it is decreased to one third of its original volume

Why might a rubber raft burst if it is left in the sun on a summer day?  

✔ temperature increases, causing interior pressure to increase

__________________________________________________________

Complete the table by filling in the missing information.  

✔ pressure, volume    A  

✔ temperature, moles of gas   B  

✔ Charles’s law    C  

✔ V = kT    D  

✔ temperature, pressure   E  

✔ P = kT    F  

✔ number of moles only    G

__________________________________________________________

Match one graph shown at right to each of the gas laws named below.  

Charles’s law  

✔ d

Gay-Lussac’s law  

✔ b

Boyle’s law  

✔ e

__________________________________________________________

Left answers:  

1.31 atm A

0.44  atm B

Right answers:  

✔ decreases it    

✔ decreases it  

0.12  atm C

__________________________________________________________

When decreasing a volume while maintaining the same pressure, the temperature will have to decrease. When volume decreases, particles get squished, increasing pressure. But when temperature decreases, particles move slower, decreasing pressure. The lowered temperature decreases pressure, but the decreased volume increases pressure, so pressure is able to stay constant.

About the 3 main gas laws covered in Edge:

Note that P=pressure, V=volume, and T=temperature. When given a problem, plug in the given values into the correct spots and solve for the unknown value.

Here are photos of Edge. I hope this made your day a little easier.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .