The process  abc shown in the pV-diagram in Fig. E19.11 involves 0.0175 mole of an ideal gas. 

(a) What was the lowest temperature the gas reached in this process? Where did it occur? 

(b) How much work was done by or on the gas from a to b? From b to c? 

(c) If 215 J of heat was put into the gas during a b c, how many of those joules went into internal energy?

Figure E19.11 p(atm) 0.60 0.40 0.20 V (L) 2.0 4.0 6.0