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16

The expansion of solids can be considered a disadvantage in the?

  • A. balance wheel of a watch
  • B. fitting of wheels on rims
  • C. fire alarm
  • D. thermostat
View Answer & Discuss (10) JAMB 1986
17

Two divers G and H are at depths 20m and 40m respectively below the water surface in a lake. The pressure on G is P1 while the pressure on H is P2. If the atmospheric pressure is equivalent to 10m of water, then the value of \( \frac{p_2}{p_1} \) is?

  • A. 0.50
  • B. 0.60
  • C. 1.67
  • D. 2.00
  • E. 3.0
View Answer & Discuss (11) JAMB 1985
18

A quantity of gas occupies a certain volume when the temperature is -73oC and the pressure is 1.5 atmospheres. If the pressure is increased to 4.5 atmospheres and the volume is halved at the same time, what will be the new temperature of the gas?

  • A. 573oC
  • B. 327oC
  • C. 300oC
  • D. 110oC
  • E. 27oC
View Answer & Discuss (4) JAMB 1985
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19

When fixed mass of an ideal gas expands at constant temperature, which property of the gas molecule increases?

  • A. average number per unit volume
  • B. average kinetic energy
  • C. average speed
  • D. average seperation
  • E. average number of collisions per unit time
View Answer & Discuss (19) JAMB 1981
20

If the volume of a fixed mass of a gas is kept constant, the pressure of the gas

  • A. is inversely proprotional to its centigrade temperature
  • B. is inversely proportional to its absolute temperature
  • C. is directly proportional to its centigrade temperature
  • D. is directly proportional to its absolute temperature
  • E. remains constant also
View Answer & Discuss (14) JAMB 1980
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