Question

Two moles of a monatomic ideal gas goes through the cycle represented in Figure below. TA=420 K; VA=0.025 m3 and VB=0.045 m3 . R=8.314 J/mol K.

  

a) Identify the process A-B, B-C and C-A (3)

b) Calculate PA , PB and TC , the pressures and temperature reached in A,B and C. [9 marks]

c) Complete the following table (on a separate document to be attached). Detail your work. [30 marks]

i) A-B (8)

ii) B-C (8)

iii) C-A (8) and

iv) Total change in internal energy, total heat transfer and total work done during one complete cycle. (3)

  

d) What is the efficiency of this engine and how does it compare to the Carnot efficiency corresponding to temperatures TA and TC . [7 marks]

Two moles of a monatomic ideal gas goes through the gyde represented in Figure below. TA 420 KVA=0.025 m and V, 0.045 m.R-8314 /mol a) Identify the process A-B. B-C and C-A (3) b) Calculate PAP and Tc. the pressures and temperature reached in AB and 19 marks) Complete the following table (on a separate document to be attached Detail your work 130 ml A-B (8) (8) CA() and Total change in Internal energy, total heat transfer and total work done during one complete cycle (13) Process AU Q w A to B B to C C to A Total el What is the effect of this engine and how does it means LA110428/3491 17 mars

Answer 1