Concept explainers
Interpretation:
From the given options, the characteristics of heat energy production has to be chosen.
Concept Introduction:
Heat Energy:
Heat is the transfer or flow due to the difference in temperature between two objects or it is the transfer of energy from one system to another system. Heat energy arises due to the movements of ions, molecules in solids, liquids and gases.
Exothermic and Endothermic
The chemical reaction in which heat energy is released known as exothermic reaction. The chemical reaction in which heat energy is absorbed known as endothermic reaction. The
Examples for exothermic reaction:
- Making ice cubes.
- Formation of snow in clouds.
- Condensation of rain from water vapour.
- Rusting iron.
- Burning sugar.
Examples for endothermic reactions:
- Melting ice cubes.
- Evaporation of water.
- Producing sugar from photosynthesis.
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General, Organic, and Biological Chemistry
- For endothermic chemical reactions the energy needed to break reactant chemical bonds is a. greater than that released in product chemical bond formation b. less than that released in product chemical bond formation c. less than the activation energy for the reaction d. no correct responsearrow_forwardWhich of the following statements concerning coenzyme A is incorrect? a. The B vitamin pantothenic acid is present as a subunit in its structure. b. The B vitamin present is the active subunit in the structure. c. Its main biochemical function is the transfer of acetyl groups. d. no correct responsearrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,