Engineering  :: Mass Transfer
            
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                If there is no condensation of carrier steam in the steam distillation of high-boiling organic materials								
				
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                | [A].   | 
                 both temperature and pressure must be fixed | [B].   | 
                 
				 either the temperature or the pressure may be fixed				 
				 
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				 | [C].   | 
                 the temperature is always more than 100?C at 1 atm | [D].   | 
                 the temperature is always equal to 100?C at 1 atm |  
				 
				 				 
				  
                    
                    
                    
                    
                    
                    
                    
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