A gas that occupies 50.0 liters has its volume increased to 68 liters when the pressure was changes to 3.0 ATM. What was the original pressure of the gas in ATM?

4.08 atm was the original pressure

Explanation:

When the temperature and the number of moles keeps on constant in 2 situations with a gas, we can apply this relation:

P₁ . V₁ = P₂ . V₂

It is an undirectly proportion, When the volume decrease, the pressure increase so if the pressue decrease, the volume will be increased.

P₁ . 50L = 3 atm . 68L

As the volume was increased, the initial pressure must be higher than the final pressure.

P₁  = (3 atm . 68L) / 50L = 4.08 atm

answer; i believe the correct answer is (solid gold);

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.