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10.1, thermonetry,thermal expansion and calorimetry — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics10.1, thermonetry,thermal expansion and calorimetry1 Mark
MCQ
An open vessel is filled completely with oil which has same coefficient of volume expansion as that of the vessel. On heating both oil and vessel,
  • A
    the vessel can contain more volume and more mass of oil
  • B
    the vessel can contain same volume and same mass of oil
  • C
    the vessel can contain same volume but more mass of oil
  • ✓
    the vessel can contain more volume but same mass of oil
✓

Answer

Correct option: D.
the vessel can contain more volume but same mass of oil
d
since the coefficient of expansion of both oil and vessel is same, as the temperature increases, volume of both oil and vessel increase same amount without any overflow of oil, hence more volume of oil is now being contained.

However the vessel is always completely filled, never empty by any fraction, hence the mass of oil containable remains the same.

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