What pressure is required to compress 189.0 liters of air at 1.00 atm into a cylinder whose volume is 28.0 liters

6.75atm

Explanation:

The following data were obtained from the question:

V1 = 189L

P1 = 1atm

V2 = 28L

P2 =?

Using Boyle's law equation P1V1 = P2V2 the pressure required to compress the gas can be obtained as follows:

P1V1 = P2V2

1 x 189 = P2 x 28

Divide both side by 28

P2 = 189/28

P2 = 6.75atm

Therefore, the pressure require to compress the gas is 6.75atm

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-