Express your answer using two significant figures. W= MJ Submit W= MJ W= MJ Subm

Question

Express your answer using two significant figures. W= MJ Submit W= MJ W= MJ Submit Part B If the temperature of the gas is 220Kat point A, what is its temperature at point C? Express your answer using two significant figures. Tc= K Submit Part B If the temperature of the gas is 220Kat point A, what is its temperature at point C? Express your answer using two significant figures. Tc= K Submit Tc= K Tc= K Submit Part C How much heat has been added to or removed from the gas during this process?
Express your answer using two significant figures. Absolute value of Q= MJ Submit Part C How much heat has been added to or removed from the gas during this process?
Express your answer using two significant figures. Absolute value of Q= MJ Submit Absolute value of Q= MJ Absolute value of Q= MJ Submit W= MJ

Explanation / Answer

Part A

Work Done is Area under the Curve

W = (4-2)*200 + (6-4)*200 + (6-4)*(600-200)/2 + (8-6)*400 + (8-6)*(600-400)/2 + (10-8)*200

= 2600 kJ = 2.6 MJ

Part B

Using PV = nRT

At Point A

200*2 = nR(220)

At Point C

200*10 = nRT

=> T/220 = 5 => T = 1100 K

Part C

Cv = 5/2 R ( for monoatomic gas)

U = nCvT = (5/2)*(nRT2 - nRT1) = (5/2)*(P2V2 - P1V1) = (5/2)*(200*10 -200*2)

= 4000 kJ

So Heat Q = 4000 + 2600 = 6600 kJ = 6.6 MJ

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