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10. How much heat is required to bring the temperature of one kilogram of aluminum from 20-C to 50-C? (Specific heat = 0.900J/g C) a) 125.5 kJ b) 125.52 J c) 27 J d) 27 kJ

10. How much heat is required to bring the temperature of one kilogram of aluminum from 20-C to 50-C? (Specific heat = 0.900J/g C) a) 125.5 kJ b) 125.52 J c) 27 J d) 27 kJ

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 20E: A 45-g aluminum spoon (specific heat 0.88 J/g C) at 24 C is placed in 180 mL (180 g) of coffee at 85...
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10. How much heat is required to bring the temperature of one kilogram of aluminum from 20°C to 50°C? (Specific heat = 0.900J/g°C) a) 125.5 kJ b) 125.52 J c) 27 J d) 27 kJ 11. Eric watches the snow melt outside. He claims it is an exothermic process. Maggie tells her it's wrong, it's endothermic. Who is right and why? 12. Why are specific heat and density of water used when working with solutions like hydrochloric acid in calorimetry?
Transcribed Image Text:10. How much heat is required to bring the temperature of one kilogram of aluminum from 20°C to 50°C? (Specific heat = 0.900J/g°C) a) 125.5 kJ b) 125.52 J c) 27 J d) 27 kJ 11. Eric watches the snow melt outside. He claims it is an exothermic process. Maggie tells her it's wrong, it's endothermic. Who is right and why? 12. Why are specific heat and density of water used when working with solutions like hydrochloric acid in calorimetry?
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