5.50 g of solid sodium hydroxide is dissolved in 175 mL of water. Using a coffee-cup calorimeter, the temperature change of the water is measured to be -2.1°C. Which equation best describes this system? A. NaOH(s) → NaOH(aq) + kJ NaOH) + kJ B. NaOH(aq) → NaOH(s) + kJ NaOH(s) 4 C. NaOH(s) + kJ →NAOH(aq) E. NaOH(s) → D. NaOH(ag) + kJ → NaOH(s) F. NaOH) + kJ → What is the definition of the temperature of a substance? A. the speed of the slowest particles in the substance, subtracted from the speed of the fastest particles. B. the heat capacity of the substance times its mass C. a measure of the average kinetic energy of a system D. the total heat content of a substance E. the speed of the fastest particles in the substance Which statement describes an endothermic reaction? A. The surroundings warm up. B. The system releases energy. C. The potential energy of the products is less than the potential energy of the reactants. D. The potential energy of the reactants is less than the potential energy of the products.
5.50 g of solid sodium hydroxide is dissolved in 175 mL of water. Using a coffee-cup calorimeter, the temperature change of the water is measured to be -2.1°C. Which equation best describes this system? A. NaOH(s) → NaOH(aq) + kJ NaOH) + kJ B. NaOH(aq) → NaOH(s) + kJ NaOH(s) 4 C. NaOH(s) + kJ →NAOH(aq) E. NaOH(s) → D. NaOH(ag) + kJ → NaOH(s) F. NaOH) + kJ → What is the definition of the temperature of a substance? A. the speed of the slowest particles in the substance, subtracted from the speed of the fastest particles. B. the heat capacity of the substance times its mass C. a measure of the average kinetic energy of a system D. the total heat content of a substance E. the speed of the fastest particles in the substance Which statement describes an endothermic reaction? A. The surroundings warm up. B. The system releases energy. C. The potential energy of the products is less than the potential energy of the reactants. D. The potential energy of the reactants is less than the potential energy of the products.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section: Chapter Questions
Problem 109SCQ
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