Tag: summary of si units

Questions Related to summary of si units

What is the unit of latent heat ?

  1. $J kg^{-1}$

  2. $J kg^{-1}mol^{-1}$

  3. $J mol^{-1}$

  4. $J$


Correct Option: A
Explanation:

Latent heat is related to the heat energy as:
$Q=mL$
$\displaystyle L=\frac {Q}{m}=Jkg^{-1}$

Study the following

List - I List - II
a) Fundamental unit I) rad
b) Derived unit II) Kg-Wt
c) Practical unit III) N
d) Supplementary unit IV) Kg
  1. a-I b-IV c-II d-III

  2. a-IV b-III c-II d-I

  3. a-I b-III c-IV d-I

  4. a-I b-II c-III d-IV


Correct Option: B
Explanation:

Fundamental unit $\rightarrow$ $Kg$
Derived unit $\rightarrow$ $N$
Practical unit $\rightarrow$ $Kg-Wt$
Supplementary unit $\rightarrow$ $rad$