Chapter 6, Problem 6.43P

Interpretation Introduction

Interpretation:

The final temperature when $155\text{ mL}$ of water at $26°\text{C}$ is mixed with $75\text{ mL}$ of water at $85°\text{C}$ is to be determined.

Concept introduction:

Specific heat capacity $\left(c\right)$ of a substance is the amount of heat needed to raise the temperature of $1\text{g}$ of a substance by $1\text{K}$. The formula to calculate heat required is as follows:

$q=\left(\text{mass}\right)\left(c\right)\left(\Delta T\right)$        (1)

Here,

$\Delta T$ is the temperature difference.

$q$ is the heat released or absorbed.

$c$ is the specific heat capacity of the substance.

The formula to calculate the mass of a substance is as follows:

$\text{mass}=\left(\text{density}\right)\left(\text{volume}\right)$        (2)