Q. Latent heat of $1gm$ of steam is $536\ cal/gm,$ then its value in $joule/kg$ is
A) $2.25 \times 10^{6}$
B) $2.25 \times 10^{3}$
C) $2.25$
D) None
Explanation
(a) $536\frac{cal}{gm} = \frac{536 \times 4.2\ J}{10^{- 3}kg} = 2.25 \times 10^{6}\ J/kg$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.