What is the source of energy that causes the reaction to continue in an endothermic reaction? materials that are part of the system chemical bonds of the reaction products O reactants involved in the reaction materials in the surrounding systems

What is the source of energy that causes the reaction to continue in an endothermic reaction? materials that are part of the system chemical bonds of the reaction products O reactants involved in the reaction materials in the surrounding systems

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Which of the following is an endothermic reaction? A. CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(l) B. CO2(g) + 2 H2O → CH4(g) + 2 O2(g) C. 2 C8H18(l) + 25 O2(g) → 16 CO2(g) + 18 H2O(g) D. 2 CH3OH(l) + 3 O2(g) → 2 CO2(g) + 4 H2O(1)
Which statement is correct for the characteristics of an endothermic reaction? Select one: a. There is a net input of energy, and energy is a product of the reaction. b. There is a net input of energy, and energy is a reactant in the reaction. c. There is a net release of energy, and energy is a reactant in the reaction. d. There is a net release of energy, and energy is a product of the reaction.
Based on the nature of reactants and products, which of the following processes would you expect to be exothermic? (You can select more than one). 2SO3 → 2S +30₂ N₂ + 3H₂ → 2NH₂ CO₂ → C+0₂ 2 NO ₂ → N₂O4 2
Calculate ΔHo for attached reaction. Classify each reaction as endothermic or exothermic.
The energy of an exothermic reaction is released into the environment O consumed in the reaction converted to another form absorbed by the reaction
Classify the following as endothermic or exothermic 1. Decomposition of waste in compost heat 2. Boiling of water 3. Combustion of gasoline 4. Dissolving laundry detergent in water 5. Nuclear fission 6. Digestion of food 7. Melting of Ice Cubes 8. Splitting a gas molecule 9. Rusting of iron 10. Rain forming from water vapor
Please answer 9d and 9e
What is a strategy that someone could use if they are not sure about how energy moves between the system and the surroundings in a reaction?
1. Define each of the following for a chemical reaction: Favored Non-favored Exothermic Endothermic AH AE
Which of the following statements about the storage of energy using chemical systems are correct? Mark all that are true. A. When energy is stored in a system where Q > K, energy is released from storage when the forward reaction occurs. B. Storing energy in a chemical system requires taking the system away from equilibrium. C. If AG° is negative, the forward reaction will always release energy and the reverse reaction will always store energy. D. The energy available by carrying out the forward reaction will change unless we take some additional action to hold Q constant.
Complete the table by writing the correct answer to the blank. Reaction Keq Stress Applied Add Cl₂ 2 HCl(g) =H₂(g) + Cl₂(g) Increase pressure Decrease temperature N₂(g) + O₂(g) = 2NO(g) ΔΗ=180.5kJ Decrease pressure Removal of NO Decrease temperature 3 Fe(s) + 4H₂O(g) Fe,O₂ (s) + 4 H₂(g) + heat Removal of H₂ Decrease of pressure / Effect (encircle your answer) (increase, decrease, no change) in the number of moles of HCI(g) (increase, decrease, no change) in the number of moles of HCI(g) (increase, decrease, no change) in the number of moles of NO(g) (increase, decrease, no change) in the number of moles of NO(g) (increase, decrease, no change) in the number of moles of NO(g) (increase, decrease, no change) in the number of moles of H₂O(g) (increase, decrease, no change) in the number of moles of H₂O(g) (increase, decrease, no change) in the number of moles of H₂O(g) Equilibrium shift (to the left, to the right, or no shift)
3- Negative enthalpy means Oa- The reaction absorbs heat. b- The reaction doesn't absorb or evolve heat. d- The reaction depend on concentrations. the reaction evolve heat