What happens to a 8 l volume of gas as you move from a pressure of 3 atm to 4 atm? use the correct gas laws to determine the new volume.

As the pressure is increased from 3 atm to 4 atm volume of gas is decreased from 8 litters to 6 litters.

Explanation:

Given data:

Volume = 8 L

Initial pressure = 3 atm

Final pressure = 4 atm

New volume = ?

Solution:

we will use Boyle's law to solve this problem.

"The volume of given amount of gas is inversely proportional to the applied pressure at constant temperature"

According to the Boyle's law,

P₁V₁ = P₂V₂

V₂ =  P₁V₁  /  P₂

V₂ = 3 atm × 8 L / 4 atm

V₂ =  24 atm. L / 4 atm

V₂ = 6 L.

So, as the pressure is increased from 3 atm to 4 atm volume of gas is decreased from 8 litters to 6 litters.

The new volume is 6 L.

Explanation:

Boyle’s law states that,

For a given amount of a gas, Pressure is inversely proportional to its volume at constant temperature

Thus the expression is PV = constant (T and n are constant)

When there is a change in pressure and volume, we make use of the expression  

(T and n are constants)

Where and are the Initial pressure and volume and

and are the final pressure and volume

Inversely proportional means when one increases the other one decreases. That is as per Boyle’s law when Pressure increases the volume will decrease and vice versa.

Let us solve this problem now

= 3atm

= 4atm

= 8L

= ?

Plugging in the values  

(T and n are constants)

= 6 L is the Answer

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e