Phase Change Process for Pure Substances cont. pressure cooker P=1 atm P=2 atm m ,T=20℃ .T=20C liquid liquid T.C Q 昌 300 p=2 atm I Superheate vapor Suppose that mass is added 2 Saturated above the piston and 100 mixture Previous experiment the experiment is repeated! Pinby 20 Does the initial specific volume change? Tvs.V What about the boiling temperature? 上游充通大 March 12,2019 14 SHANGHAI JIAO TONG UNIVERSITYMarch 12, 2019 14 Phase Change Process for Pure Substances cont. Suppose that mass is added above the piston and the experiment is repeated! T vs. v • Does the initial specific volume change? • What about the boiling temperature? Previous experiment pressure cooker