Question

The S.I. unit of specific heat capacity is :

• A. $Jk{g}^{-1}$
• B. $J{K}^{-1}$
• C. $Jk{g}^{-1}{K}^{-1}$
• D. $kcalk{g}^{-1}{}^{\circ }{C}^{-1}$

Answer 1

Answer: (C)

$Jk{g}^{-1}{K}^{-1}$

the quantity of heat required to raise the temperature of one kilogram of a substance by one degree Celsius (or one Kelvin) at a constant pressure.
$q=m\times S\times △t$
$S=\frac{q}{m\times △t}$
here,$q=$heat required
$S=$specific heat capacity
$m=$mass of substance
$△t=t_1-t_2$
so,The S.I. unit of specific heat capacity is $J{kg}^{-1}{K}^{-1}$