CBSE-XI-Physics
25: Calorimetry
- #4Which of the following pairs represent units of the same physical quantity?
(a) Kelvin and joule
(b) Kelvin and calorie
(c) Newton and calorie
(d) Joule and caloriedigAnsr: dAns : (d) Joule and calorie
One calorie is defined as the amount of heat needed to raise the temperature of 1 g of water from 14.5o to 15.5o at the pressure of 1 atm. Heat is a form of energy and the unit of energy is joule.
Therefore, joule and calorie represent energy.
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