Question #164995

 In a flexible-walled container, 300 L of gas is prepared at 600 mm Hg and 200 oC. The gas is placed in a tank under high pressure. When the tank cools to 20 oC, the pressure of the gas is 30 atm. What is the new volume of the gas?



1
Expert's answer
2021-02-22T05:54:23-0500

Initial Pressure P1P_1 = 600mm Hg = 600/760 atm = 0.7894 atm

Initial volume V1V_1 = 300L

Initial temperature T1T_{1} = 473K

Final temperature T2T_2 = 293K

Final Pressure P2P_2 = 30 atm

Since, moles of gas remains constant in both the cases

So, P1V1RT1=P2V2RT2\dfrac{P_1V_1}{RT_1}= \dfrac{P_2V_2}{RT_2}

So, final volume of the gas will be V2=P1V1T2T1P2V_2=\dfrac{P_1V_1T_2}{T_1P_2}

Substituting the values V2=0.7894×300×293473×30=4.89LV_2= \dfrac{0.7894\times300\times293}{473\times30}=4.89 L

Final Volume of the gas is 4.89L


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