Agas at constant temperature occupies a volume of 2.40 l and exerts a pressure of 0.85 atm. what volume will the gas occupy at a pressure of 0.15 atm? work must be shown in order to earn credit.

13.6L

Explanation:

Given parameters:

Initial Volume V₁ = 2.4L

Initial pressure P₁ = 0.85atm

Final pressure P₂ = 0.15atm

Final volume V₂ = ?

Solution

To solve the problem we have to take the condition stated in the problem very carefully. It was stated that the gas was at a constant temperature.

According to Boyle's law" The volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".

We can simply apply this law to solve the problem:

The law is mathematically expressed as P₁V₁ = P₂V₂

The unknown here is V₂ the final volume. We express it as the subject of the formula:

                     V₂ =

Now solving for the final volume, we have:

                 V₂ =

                 V₂ = = 13.6L

idk i’m struggling too

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.