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        | Engineering  :: Renewable Sources of Energy |  | 
       
        
	 
	
	 
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                |  | The ideal stirling cycle combines |  
                | | [A]. | two constant pressure processes and two constant volume processes | [B]. | two constant temperature processes and two constant volume processes |  | [C]. | two constant pressure processes and two constant temperature processes | [D]. | two constant pressure processes and two constant entropy processes | 
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