Question

The amount of energy absorbed or released during a chemical reaction can be expressed in terms of?

• A. Degree and gram
• B. Torr and mmHg
• C. Gram and liter
• D. Calorie and joule
• E. Meter and $c{m}^3$

Answer 1

The correct option is D Calorie and joule

The amount of energy absorbed or released during a chemical reaction can be expressed in terms of Calorie and joule.

The SI unit of energy is the joule (J) and is used to express energy as both heat and work. $1cal=4.184J$.
Note:

(A) Degree and gram are units for measurement of temperature and weight, respectively.
(B) Torr and mm Hg are units for measurement of pressure
(C) Gram and liter are units for measurement of wight and volume, respectively
(E) Meter and cm${}^3$ are units for measurement of volume.