MCQ
A substance is cooled at a constant power. Its temperature vs time graph is shown. The value of $S_{solid} : S_{liquid} : S_{gas}$
  • A
    $2 : 3 : 3$
  • $3 : 6 : 2$
  • C
    $2 : 6 : 3$
  • D
    $1 : 3 : 2$

Answer

Correct option: B.
$3 : 6 : 2$
b
$\frac{1}{\mathrm{mS}_{\mathrm{gas}}}=\frac{30}{10}=3$

$\frac{1}{\mathrm{mS}_{\mathrm{liquid}}}=\frac{20}{20}=1$

$\frac{1}{\mathrm{mS}_{\text {solid }}}=\frac{40}{20}=2$

$\frac{1}{3 m}: \frac{1}{m}: \frac{1}{2 m}$

$2: 6: 3$

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