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11. thermodynamics — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics11. thermodynamics1 Mark
MCQ
A perfect gas contained in a cylinder is kept in vacuum. If the cylinder suddenly bursts, then the temperature of the gas
  • ✓
    Remains constant
  • B
    Becomes zero
  • C
    Increases
  • D
    Decreases
✓

Answer

Correct option: A.
Remains constant
a
(a) During free expansion of a perfect gas no, work is done and also no heat is supplied from outside. Therefore, no change in internal energy. Hence, temperature remain Hconstant.

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