Chemistry Reactions and Temperature Changes
In this content, key information about the initial and final temperatures of various chemical reactions involving sulfuric acid, potassium, ammonium chloride, and boron is provided. The temperature changes observed in these reactions, along with whether they are exothermic or endothermic, are highlighted. Additionally, melting and boiling points of the substances are mentioned, offering insights into their thermodynamic behavior and properties.
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Presentation Transcript
Chemistry Kareem m, eyad, saif
Sulfuric acid Initial temperature of the Sulfuric acid is 19.2 Celsius The final temperature when sulfuric acid is dissolved in water is 25 Celsius. The temperature change 5.8 Celsius and this reaction is exothermic
Potassium Potassium freezing point is 63.5 Celsius. Potassium boiling point is 758.8 Celsius. The initial temperature of potassium is 60 Celsius, And the final temperature of it is 53.6 Celsius The temperature change is -6.4 Celsius and it is an endothermic reaction
Ammonium chloride Ammonium chloride has a melting point of 338 Celsius. The boiling point of ammonium chloride is 520 Celsius. Ammonium chloride is an exothermic reaction
boron Boron has a melting point at 2076 Celsius. Boron s boiling point is 3927 Celsius. Boron is a exothermic
