A vessel of volume 125 cm3 contains tritium (3H, t1/2 = 12.3 y) at 500 kPa and 300 K. Calculate the activity of the gas.

Given: Pressure P= 500000 Pa= 5 atm


Volume V= 0.125L


Temperature T= 300K


Assuming the gas to be ideal, according to ideal gas equation,


(R be universal gas constant equal to 0.082atmLmol-1K-1, P is the pressure, V is the volume, T is the temperature)


So,




Activity,




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