FOR THE FOLLOWING PROCESS,CALCULATE THE CHANGE IN INTERNAL ENERGY OF THE SYSTEMAND DETERMINE WHETHER THE PROCESS IS ENDOTHERMIC OR EXOTHERMIC:ABALLOON IS HEATED BY ADDING 900JOULES OF HEAT.IT EXPANDS,DOING 422JOULES OF WORK ON THE ATMOSPHERE.A 50-GRAMS SAMPLE OF WATER IS COOLED FROM 30c TO 15C,THEREBY LOSING APPROXIMATELY 3140JOULES OF HEAT.CHEMICAL REACTION RELEASES 8.65KJOULES OF HEAT AND DOES NO WORK ON THE SURROUNDING
Change in internal energy of the system
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