Chapter 6, Problem 6.86QP

(a)

Interpretation Introduction

Interpretation:

The thermochemical basis for the given statement has to be written.

Concept Introduction:

Specific heat:

Specific heat can be defined as quantity of heat required to raise the temperature of $\text{1}\text{g}$ substance by $\text{1°C}$.  The relationship between heat and change in temperature can be expressed by the equation given below.

$\text{q=cmΔT}$

Where,

$\text{q=}$ Heat added

c= Specific heat

$\text{m=}$ Mass

$\text{ΔT=}$ Change in temperature.

The unit of specific heat is $\text{J}{\text{g}}^{\text{-1}}\text{.°C}$ .

Heat capacity:

Heat capacity can be defined as quantity of heat required to raise the temperature of the object by $\text{1°C}$.

The other equation that is used to calculate heat from heat capacity can be given by,

$\text{q=CΔT}$

Where,

$\text{C=}$ Heat capacity of calorimeter

$\text{ΔT=}$ Change in temperature

The unit of heat capacity is $\text{J}{\text{.°C}}^{\text{-1}}$

The relationship between heat and specific heat capacity is given as,

$\text{C=ms}$

(b)

Interpretation Introduction

Interpretation:

The given statement has to be explained.

Concept Introduction:

Heat capacity:

Heat capacity can be defined as quantity of heat required to raise the temperature of the object by $\text{1°C}$.

The other equation that is used to calculate heat from heat capacity can be given by,

$\text{q=CΔT}$

Where $\text{C=}$ Heat capacity of calorimeter

$\text{ΔT=}$ Change in temperature

The unit of heat capacity is $\text{J}{\text{.°C}}^{\text{-1}}$