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

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.