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701
The volume of an ideal gas at a pressure of 77cmHg and temperature 60oC is 24cm3. If the temperature and pressure are increased to 98oC
and 81cmhg respectively, calculate the new volume of the gas
  • A. 411.5cm3
  • B. 267.1cm3
  • C. 254.2cm3
  • D. 112.7cm3
View Answer & Discuss (3) WAEC 2001
702

The amount of heat given out or absorbed when a substance changes its state at a constant temperature is known as

  • A. latent heat
  • B. heat capacity
  • C. specific latent heat
  • D. specific heat capacity
View Answer & Discuss WAEC 2001
703

Which of the following physical qualities affects the saturated vapour pressure of a liquid ?

  • A. temperature
  • B. volume
  • C. mass
  • D. density
View Answer & Discuss WAEC 2001
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704

Humidity is used to describe the amount of

  • A. air in water vapour
  • B. cloud available in the atmosphere
  • C. air in equal volume of cloud
  • D. water vapour in the amosphere
View Answer & Discuss (1) WAEC 2001
705
Surface waves travelling in deep water at 15ms-1 are incident at a shallow water boundary. If the angles of incidence and refraction are 45o and 30o respectively. Calculate the speed of the waves in shallow water
  • A. 8.1ms-1
  • B. 10.0ms-1
  • C. 10.6ms-1
  • D. 22.5ms-1
View Answer & Discuss (3) WAEC 2001
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