Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 2, Problem 7RQ
Which of the following is the simplest atom that exists?
- a. carbon
- b. hydrogen
- c. oxygen
- d. sulfur
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5. Which ONE of the following substances is LEAST ionic?
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6. Calculate the difference in electronegativity (AEN) for the bonds that would form between the
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b. B and Br
c. B and F
d. Al and O
e. N and F
Chemical energy refers to the energy associated with the bonds within nucleus of atom itself.
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True
False
2-The presence of more than one type of bonding between atoms in some
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Chapter 2 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 2 - All physical objects are composed of __________....Ch. 2 - What is an atom?Ch. 2 - Which of the following is a part of the atom? a....Ch. 2 - What is static electricity?Ch. 2 - Name three ways electricity can be produced.Ch. 2 - What part do protons and electrons play in the...Ch. 2 - Which of the following is the simplest atom that...Ch. 2 - What are the four most important characteristics...Ch. 2 - What is electromotive force?Ch. 2 - Electromotive force is commonly measured in _____....
Ch. 2 - What is current?Ch. 2 - How is current measured? a. amperes b. ohms c....Ch. 2 - What is resistance?Ch. 2 - How is resistance commonly measured? a. amperes b....Ch. 2 - What is electrical power?Ch. 2 - How is electrical power commonly measured? a....Ch. 2 - Where do electrons exist in an atom, and what is...Ch. 2 - True or False: All atoms tend to lose electrons.Ch. 2 - State the law of electric charges.Ch. 2 - What is a proton? Where does it normally exist in...Ch. 2 - Describe briefly the method a dry cell battery...Ch. 2 - What is a conductor?Ch. 2 - Which of the following is the best conductor? a....Ch. 2 - What is an insulator?Ch. 2 - Which of the following is the best insulator? a....Ch. 2 - Why do metals make the best conductors?Ch. 2 - How do electric utility companies charge customers...Ch. 2 - What is the meaning of SEER when used in...Ch. 2 - State Ohms law.Ch. 2 - True or False: Ohms law applies to all types of...Ch. 2 - What is the ampere draw of a 5000-watt electric...Ch. 2 - What is the resistance of the heating element of...Ch. 2 - What is the voltage of a small electric heater if...Ch. 2 - What is the Btu/hour output of an electric heater...Ch. 2 - What is the kilowatt output of an electric heater...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Which of the statements about hydrogen is true? a. A hydrogen atom is one proton and two electrons. b. Hydrogen is one of the heaviest elements known and is full of energy. c. Fossil fuels are combinations of carbon and hydrogen. d. Hydrogen is produced in a fuel cell when water is broken down into its basic elements.arrow_forward6. Choose correct sentences (Ionic bond) a. Water molecule, ammonia molecules b. Graphenes bonding forces in graphite c. Sodium chloride (Ionic bond) d. Carbon, silicon, germanium e. Diamond (Hydrogen bond solids) (Van der waals bond) (Covalent bond) 7. (Choose incorrect sentences) a. Interstitial Alloys are metal alloys formed by substituting one metal atom for another metal atom of similar size. a. Substitutional Alloys are metal alloys formed by inserting smaller atoms into holes of the metal lattice. c. None 8. To relieve internal stress in heat treatment techniques is obtained at: a. Annealing b. Normalizing c. Hardening d. Tampering e. Curborization f. Quenching 9. When the angle of misorientation is parallel the boundary due to an array of screw dislocation it's called: a. Grain structure b. Tilt boundary c. Grain boundaries d. Twist boundary e. Stacking faultsarrow_forwardIn the electron arrangement of a calcium atom, how many electrons are in the second energy level? Plz solvearrow_forward
- Which of the following element revolves around the nucleus in an atom a. Neutrons b. Protons c. Neutrons and Protons d. Electronsarrow_forwardDetermine the refrigerant name, chemical formula and the no. of fluorine, carbon, and hydrogen atoms for the following hydrocarbons/halocarbons: o R-23 o R-131 o Monochlorotetrafluoroethanearrow_forwardtrue or false Chemical energy refers to the energy associated with molecular bonds.arrow_forward
- fill in the blanks When an element has its proper complement of valence electrons, it is electrically _________; when an atom has more or fewer than that number, it is an ion and has an electric charge. The charge is ________ when extra electrons are present and ________ when some are missing. .The ____________ bond is formed among metallic atoms when some electrons in the valence shell separate from their orbital path and exist in a free state like a cloud or gas. Surrounding the positive nuclei in this highly mobile state, the negative cloud bonds the atoms together. Because the electrons in the cloud do not “belong” to any particular atoms, the bond strengths can vary, deformation can take place without rupture, and good heat and electrical conductivity can occur owing to the easy movement of electrons from one atomic site to the next. This type of bonding makes possible some of the useful characteristics of metals, both mechanical properties and physical properties.arrow_forwardChoose the correct statement. Select one: a. Metallic bonding share electrons O b. Covalent bonding requires variable bonding energy O c. Covalent bonding and ionic bonding transfers electrons O d. lonic bonding share electronsarrow_forwardFor APF, Which one of the following is the assumption a. The atoms overlap b. The atoms are rigid cubes c. The atoms do not overlap d. The atoms are not rigid spheresarrow_forward
- When this part of an atom moves to another atom, the losing atom will have a ______charge. A. negative B. positive C. neutralarrow_forwardIn engineering, ceramic, metallic and polymeric materials are used; select their order based on the intensity of their intermolecular bonding forces: a. Ceramic > metallic > polymericb. Polymeric > metallic > ceramicc. Ceramic < metallic < polymericd. Metallic > ceramic > polymericarrow_forwardRefer to Figure A.1. What is the value of member EF? 2. What is the value of member GH?3. What is the value of member FH? 4. What is the value of member EG? 5. What is the value of member BC?arrow_forward
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