MCQ
When water is heated from $0^{\circ} C$ to $4^{\circ} C$, then :
- A$C _{ p }= C _{ v }$
- ✓$C _{ p }< C _{ v }$
- C$C _{ p }> C _{ v }$
- D$C_p-C_v=R$.
✓
Answer
Correct option: B.
$C _{ p }< C _{ v }$
(B) $C _{ p }< C _{ v }$,
When water is heated from 0 to $4^{\circ} C$, the volume decreases instead of increasing.
$\therefore$ Heat required at constant pressure is less than that at constant volume.
When water is heated from 0 to $4^{\circ} C$, the volume decreases instead of increasing.
$\therefore$ Heat required at constant pressure is less than that at constant volume.
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