Air in a closed cylinder is heated from 25 degree to 36 degree. if the initial pressure is 3.80 atm what is the final pressure ?

5.47 atm

Explanation:

We have an initial state in which the air is at a temperature of 25 degrees and a pressure of 3.80 atm

We also have a final state in which the temperature is 36 degrees and we have to find out the pressure

For two different states it meets the following equation

As we are told that the air is in a closed cylinder the volume is always constant, it is the same on both sides () so we can simplify it and the equation is as follows

Now we clear the final pressure ()

The final pressure is 5.47 atm

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72