Question

A $1g$ sample of substance $A$ at ${100}^{o}C$ is added to $100mL$ of $H_{2}O$ at ${25}^{o}C$. Using separate $100mL$ portion of $H_{2}O$ the procedure is repeated with substance $B$ then with substance $C$. How will the final temperatures of the water compare?

Substance	Specific heat
$A$	$0.6g^{-1}$ ${}^o{C}^{-1}$
$B$	$0.4g^{-1}$ ${}^o{C}^{-1}$
$C$	$0.2g^{-1}$ ${}^o{C}^{-1}$

• A. $T_C>T_B>T_A$
• B. $T_B>T_A>T_C$
• C. $T_A>T_B>T_C$
• D. $T_A=T_B=T_C$

Answer 1

The correct option is C $T_A>T_B>T_C$

$\text{More the value of Specific heat more the value of final temperature.}$

$T_A>T_B>T_C$