Find the total pressure of a gas that initially occupied 27 l at 32 degrees celsius and 2.5 atm, if the final conditions are 12 degrees celsius and 88.0 l

Total pressure of the gas will be 0.716atm.

Explanation: We are given a gas having initial conditions as

V = 27L

T = 32°C = 305K

P = 2.5atm

As the gas remains same, number of moles of a gas will also be same for initial and final conditions. To calculate the number of moles, we use ideal gas equation, which is,

                                                               .......(1)

where, R = gas constant =

For calculating number of moles:

Putting the values of initial condition in this equation, we get

n = 2.696 mol

Now, the final conditions are,

V = 88.0L

T = 12°C = 285K

n = 2.696 mol (calculated above)

P = ? atm

Again using equation 1, we get

P = 0.716atm.

explanation:

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