Q. Calorie is defined as the amount of heat required to raise temperature of 1 g of water by 1 $℃$ and it is defined under which of the following conditions?
A) From 14.5$℃$ to 15.5$℃$ at 760 mm of Hg
B) From 98.5$℃$ to 99.5$℃$ at 760 mm of Hg
C) From 13.5$℃$ to 14.5$℃$ at 76 mm of Hg
D) From 3.5$℃$ to 4.5$℃$ at 76 mm of Hg
Explanation
(a) 1 calorie is the heat required to raise the temperature of 1 g of water from $14.5℃\ to\ 15.5℃\ at\ 760\ mm\ of\ Hg$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.