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A Substance Has a Melting Point of 20°C and a Heat

question 23

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A substance has a melting point of 20°C and a heat of fusion of A substance has a melting point of 20°C and a heat of fusion of   The boiling point is   And the heat of vaporization is   At a pressure of one atmosphere.The specific heats for the solid,liquid,and gaseous phases are 600 J/kg ∙ K (solid) ,1000 J/kg ∙ K (liquid) ,and 400 J/kg ∙ K (gaseous) .How much heat is given up by   Of this substance when it is cooled from 170°C to 86°C at a pressure of one atmosphere? A) 400 kJ B) 200 kJ C) 300 kJ D) 440 kJ E) 640 kJ
The boiling point is A substance has a melting point of 20°C and a heat of fusion of   The boiling point is   And the heat of vaporization is   At a pressure of one atmosphere.The specific heats for the solid,liquid,and gaseous phases are 600 J/kg ∙ K (solid) ,1000 J/kg ∙ K (liquid) ,and 400 J/kg ∙ K (gaseous) .How much heat is given up by   Of this substance when it is cooled from 170°C to 86°C at a pressure of one atmosphere? A) 400 kJ B) 200 kJ C) 300 kJ D) 440 kJ E) 640 kJ
And the heat of vaporization is A substance has a melting point of 20°C and a heat of fusion of   The boiling point is   And the heat of vaporization is   At a pressure of one atmosphere.The specific heats for the solid,liquid,and gaseous phases are 600 J/kg ∙ K (solid) ,1000 J/kg ∙ K (liquid) ,and 400 J/kg ∙ K (gaseous) .How much heat is given up by   Of this substance when it is cooled from 170°C to 86°C at a pressure of one atmosphere? A) 400 kJ B) 200 kJ C) 300 kJ D) 440 kJ E) 640 kJ
At a pressure of one atmosphere.The specific heats for the solid,liquid,and gaseous phases are 600 J/kg ∙ K (solid) ,1000 J/kg ∙ K (liquid) ,and 400 J/kg ∙ K (gaseous) .How much heat is given up by A substance has a melting point of 20°C and a heat of fusion of   The boiling point is   And the heat of vaporization is   At a pressure of one atmosphere.The specific heats for the solid,liquid,and gaseous phases are 600 J/kg ∙ K (solid) ,1000 J/kg ∙ K (liquid) ,and 400 J/kg ∙ K (gaseous) .How much heat is given up by   Of this substance when it is cooled from 170°C to 86°C at a pressure of one atmosphere? A) 400 kJ B) 200 kJ C) 300 kJ D) 440 kJ E) 640 kJ
Of this substance when it is cooled from 170°C to 86°C at a pressure of one atmosphere?


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