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MCQs

Total Questions : 194 | Page 8 of 20 pages
Question 71. The amount of heat required to raise temperature of 1Kg water by 1°C or 1 K is called
  1.    Heat capacity
  2.    Specific heat
  3.    Entropy
  4.    Enthalpy
 Discuss Question
Answer: Option B. -> Specific heat
Answer: (b).Specific heat
Question 72. The SI unit is specific constants
  1.    J/ K
  2.    Joule
  3.    J/mol K
  4.    J/mol
 Discuss Question
Answer: Option C. -> J/mol K
Answer: (c).J/mol K
Question 73. It is a property related to internal energy that is very important in thermodynamics.
  1.    Specific rate constant
  2.    Specific heat
  3.    Entropy
  4.    Enthalpy
 Discuss Question
Answer: Option B. -> Specific heat
Answer: (b).Specific heat
Question 74. The amount of heat required to raise temperature of a material by 1°C is called
  1.    Heat energy
  2.    Kinetic energy
  3.    Heat capacity
  4.    Molar heat constant
 Discuss Question
Answer: Option C. -> Heat capacity
Answer: (c).Heat capacity
Question 75. The specific heat at constant pressure is denoted as
  1.    Cp
  2.    Sp
  3.    CP
  4.    SP
 Discuss Question
Answer: Option A. -> Cp
Answer: (a).Cp
Question 76. Energy can be conserved through
  1.    insulating lofts with fiber glass
  2.    use of lame burn engines
  3.    using catalytic converters
  4.    controlling temperature
 Discuss Question
Answer: Option A. -> insulating lofts with fiber glass
Answer: (a).insulating lofts with fiber glass
Question 77. Upon heating either of carbonate, hydroxide or nitrate, a common byproduct is
  1.    Heat
  2.    water vapors
  3.    oxides of same compounds
  4.    carbon dioxide
 Discuss Question
Answer: Option C. -> oxides of same compounds
Answer: (c).oxides of same compounds
Question 78. In an endothermic reaction,
  1.    more light is produced
  2.    chemical bonds are formed
  3.    a lot of steam is produced
  4.    products contain more energy than the reactants
 Discuss Question
Answer: Option D. -> products contain more energy than the reactants
Answer: (d).products contain more energy than the reactants
Question 79. CHP stands for
  1.    Compressed hydrogenated petrol
  2.    combustible halogenated propane
  3.    combined heat and power
  4.    controlled hallucinating pressures
 Discuss Question
Answer: Option C. -> combined heat and power
Answer: (c).combined heat and power
Question 80. Overall energy change can be calculated by
  1.    subtracting the energy taken in when bonds are broken from the energy given out, when bonds are made
  2.    adding the energy taken in when bonds are broken and the energy given out, when bonds are made
  3.    subtracting the energy given out when bonds are made from the energy taken in, when bonds are broken
  4.    multiplying all the enthalpy changes
 Discuss Question
Answer: Option A. -> subtracting the energy taken in when bonds are broken from the energy given out, when bonds are made
Answer: (a).subtracting the energy taken in when bonds are broken from the energy given out, when bonds are made

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