question_answer

A one mole sample of an ideal gas is carried around the thermodynamic cycle shown in the figure. The cycle consists of three steps: (i) an isothermal expansion \[(a\to b),\] (ii) an isobaric compression \[(b\to c),\] and (iii) a constant volume increases in pressure \[(c\to a).\] If \[{{T}_{a}}=400K,\] \[{{P}_{a}}=4atm,\]and \[{{P}_{b}}={{P}_{c}},=1atm,\] the work done by the gas per cycle is       

A) 211.6 J

B) 1158 J            

C) 705.3 J

D) 2116 J