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5. Thermodynamics and thermochemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
During melting of an ice slab at $273\, K$ at $1$ atm pressure
  • A
    Zero work is done on the ice-water system by the atmosphere
  • B
    Positive work is done by the ice-water system on the atmosphere
  • C
    The internal energy of the ice-water system increase
  • ✓
    Both $(b)$ and $(c)$
✓

Answer

Correct option: D.
Both $(b)$ and $(c)$
d
Ice $\to $ Water

$dv = -ve$

Heat absorbed therefor $I.E.\, \uparrow $

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