The volume of a gas at 2.0 atm is 3.0 l. what is the volume of the gas at 1.5 atm at the same temperature?
0.50 l
1.0 l
1.5 l
4.0 l

The final volume of the gas comes out to be 4 L.

Explanation:

To calculate the volume with changing pressure, we use the equation given by Boyle's law.

This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

Mathematically,

     (At constant temperature and number of moles)

The equation given by this law is:

where,

are initial pressure and volume.

are final pressure and volume.

We are given:

Putting values in above equation, we get:

Hence, the final volume of the gas will be 4 L.

Answer : The correct option is, 4.0 L

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

or,

where,

= initial pressure of gas = 2.0 atm

= final pressure of gas = 1.5 atm

= initial volume of gas = 3.0 L

= final volume of gas = ?

Now put all the given values in the above equation, we get:

Therefore, the final volume of the gas is 4.0 L.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

increased stability in the completion of fluorine's outer shell.