5) Classify if this is Endothermic or Exothermic: HEAT IS ABSORBED BY THE REACTION FROM THE SURROUNDINGS. Focus on the reaction. Endothermic Exothermic 6) Refer to the given situation below to evaluate if this statement is TRUE or FALSE: This reaction is endothermic and has a positive value of q. The following reaction absorbs 393 kJ of heat for each mole of CO₂ that reacts. CO₂(g) → C(s) + O₂(g) True False 7) Refer to the given situation below to evaluate if this statement is TRUE or FALSE: This reaction is is exothermic and has a positive value of q. The following reaction absorbs 393 kJ of heat for each mole of CO₂ that reacts. CO₂(g) → C(s) + O₂(g) True False
5) Classify if this is Endothermic or Exothermic: HEAT IS ABSORBED BY THE REACTION FROM THE SURROUNDINGS. Focus on the reaction. Endothermic Exothermic 6) Refer to the given situation below to evaluate if this statement is TRUE or FALSE: This reaction is endothermic and has a positive value of q. The following reaction absorbs 393 kJ of heat for each mole of CO₂ that reacts. CO₂(g) → C(s) + O₂(g) True False 7) Refer to the given situation below to evaluate if this statement is TRUE or FALSE: This reaction is is exothermic and has a positive value of q. The following reaction absorbs 393 kJ of heat for each mole of CO₂ that reacts. CO₂(g) → C(s) + O₂(g) True False
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter8: Thermochemistry
Section: Chapter Questions
Problem 81QAP: Determine whether the statements given below are true or false. Consider an endothermic process...
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Concept explainers
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
SUBJECT : GENERAL CHEMISTRY 2
TOPIC : HEAT AND CALORIMETRY
Transcribed Image Text:5) Classify if this is Endothermic or Exothermic: HEAT IS ABSORBED BY
THE REACTION FROM THE SURROUNDINGS. Focus on the reaction.
Endothermic
Exothermic
6) Refer to the given situation below to evaluate if this statement is TRUE
or FALSE: This reaction is endothermic and has a positive value of q.
The following reaction absorbs 393 kJ of heat for each mole of CO₂ that reacts. CO₂(g) → C(s)
+ O₂(g)
True
False
7) Refer to the given situation below to evaluate if this statement is TRUE
or FALSE: This reaction is is exothermic and has a positive value of q.
The following reaction absorbs 393 kJ of heat for each mole of CO₂ that reacts. CO₂(g) → C(s)
+ O₂(g)
True
1
False
Transcribed Image Text:1) Classify if this is Endothermic or Exothermic: HEAT MUST BE ADDED TO
GET THE REACTION TO GO. Focus on the reaction.
Endothermic
Exothermic
2) Classify if this is Endothermic or Exothermic: THE TEMPERATURE OF
THE SURROUNDINGS DECREASES. Focus on the surroundings.
Endothermic
Exothermic
3) Classify if this is Endothermic or Exothermic: THE POTENTIAL ENERGY
OF THE REACTANTS IS GREATER THAN THAT OF THE SURROUNDINGS.
Focus on the reactants.
Endothermic
Exothermic
4) Classify if this is Endothermic or Exothermic: MATTER IS CONVERTED
INTO ENERGY. Focus on the what's happening to matter.
Endothermic
Exothermic
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