Question

Mass and specific heat of liquids A, B and C are shown. If the three mixed, find the resultant specific heat(s) of the mixture.

Liquid	Mass	Specific heat
A	$m_1$	$s_1$
B	$m_2$	$s_2$
C	$m_3$	$s_3$

Answer 1

$Q=mS\Delta T$

For a mixture ,by "rules of mixture",

$S_{mixture}=\left(\frac{m_1}{m_{mixture}}\right)S_1+\left(\frac{m_2}{m_{mixture}}\right)S_2+\left(\frac{m_3}{m_{mixture}}\right)S_3$

where $S_{mixture}$ is the resultant specific heat of mixture.