Heat and Thermodynamics 1 Question 11
11. Calorie is defined as the amount of heat required to raise temperature of $1 g$ of water by $1^{\circ} C$ and it is defined under which of the following conditions?
(2005, 2M)
(a) From $14.5^{\circ} C$ to $15.5^{\circ} C$ at $760 mm$ of $Hg$
(b) From $98.5^{\circ} C$ to $99.5^{\circ} C$ at $760 mm$ of $Hg$
(c) From $13.5^{\circ} C$ to $14.5^{\circ} C$ at $76 mm$ of $Hg$
(d) From $3.5^{\circ} C$ to $4.5^{\circ} C$ at $76 mm$ of $Hg$
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Solution:
- 1 calorie is the heat required to raise the temperature of $1 g$ of water from $14.5^{\circ} C$ to $15.5^{\circ} C$ at $760 mm$ of $Hg$.
Hence, correct option is (a).
