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Stack #4563162

QuestionAnswer
calorie cal, amount of energy needed to heat 1g of H20 from 20C to 21C
Jules to Kj 1000J-1kj
1 Cal to J to Kj 1 Cal=4184J=4.184kJ
cal to J cal=4.184J
Kinetic Energy formula Ek=1/2mv^2
Potential Energy Formula Ep=mgh
Heat Total kinetic energy of object/system
Temperature Avg KE
System what we isolate to study
Surroundings everything that we don't isolate
Open system Can exchange energy and matter
Closed system Can only exchange energy
Work formula W=F*D F=(mass*gravity)
Endothermic chemicals get more heat, but it feels cold, energy increases
Exothermic chemicals get more cold, but it feels hot, energy decreases(+
change in H (triangle H) formula H products- H reactants
 

 



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