15. (5 poins) Selecthe predominant concepyt or word from blthat pplies to the fo
ID: 105011 • Letter: 1
Question
15. (5 poins) Selecthe predominant concepyt or word from blthat pplies to the following situations. Write your answer in the blank. Answer FIVE of nine situations. Only the FIRST five with answers will be graded. If you answer more than five, the last three answers will be ignored. Choose carefully!!! List of some concepts discussed in Chem 1303 this semester G Delocalized bond L K Ice melts under increasing pressure B. E-by H. IH Hydrogen bonding C Moecular polarity (polar vs. nompolar) Covalent crystal ion dissociation and electrolytes Vapor pressure of water Pauli exclusion principle Hund's rule D. E F. Situations: Water boils at lower temperature at the top of Mountain Everest People could skate on the surface of ice Electrical equipment should not be operated with wet hands Graphite is good electricity conductor Microwave cannot heat dry ice effectively 2o Tires should not be inflated to high pressure in summer Diamond is one of the hardest material on earth Ice floats/ Formation of frost heaves and pot holes in pavement Neon lights have many different colons Once more: Only the FIRST five with answers will be graded. If you answer more than five, the three answers will be ignored. Choose carefully!!Explanation / Answer
pV = nRT is the ideal gas law , that can be applied to find the attributes related to the gases. The boiling point of the solution is related to its vapor pressure.
So here , the concepts related to the situations are :
F. vapor pressure of water ; water boils at lower temperature at the top of Mount everest.
E. Ion dissociation and electrolytes : electrical equipments should not be operated with wet hands.
G. delocalised bond : Graphite is a good conductor of electricity
A. PV = nRT : tyres should not be inflated to high pressure in summer.
D. Covalent crystal : Diamond is one of the hardest material on earth.
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