9.12 A flash chamber operating at 376K separates a benzene (1) and toluene (2) mixture. The liquid stream exiting the flash chamber contains 20mol% benzene and 80% toluene. (a) Estimate the flash chamber pressure. (b) While the flash chamber operates at the pressure as calculated in part (a), the liquid product specification is changed to 10% benzene and 90% toluene. Would you increase or decrease temperature and by how much