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1686

The specific latent heat of fusion of lead is the amount of heat required to

  • A. melt lead at its melting point
  • B. heat a unit mass of lead through 1oC
  • C. change the state of a unit mass of lead at its melting point
  • D. change the state of a unit mass of lead at its boiling point
View Answer & Discuss (6) JAMB 1986
1687
Which of the following is common to evaporation and boiling? They
  • A. take place at any temperature
  • B. are surface phenomena
  • C. involve change of state
  • D. take place at a definite pressure
View Answer & Discuss (2) JAMB 1986
1688

Mercury is suitable as a barometric fluid because it?

  • A. expands uniformly
  • B. is opaque
  • C. is several times denser than water
  • D. is a good conductor of heat
View Answer & Discuss (20) JAMB 1986
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1689
Which of the following properties makes metals ideal for cooking utensils?
  • A. high coefficient of expansion
  • B. good conduction of heat
  • C. low specific heat capacity
  • D. poor radiation of heat
View Answer & Discuss (5) JAMB 1986
1690
A gas occupies a volume of 300cm3at a temperature of 27oC. What is its volume at 54oC, when the pressure is constant?
  • A. 150cm3
  • B. 273cm3
  • C. 327cm3
  • D. 600cm3
View Answer & Discuss (2) JAMB 1986
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