Chapter 6, Problem 6.122QP

(a)

Interpretation Introduction

Interpretation:

The potential energy, kinetic energy and increase in temperature of the water have to be calculated.

Concept Introduction:

The energy possessed by an object due to its relative point to some other object, stress surrounded by itself, its electric charge or any other external factor is called as potential energy.

Potential energy can be calculated using the formula,

$\text{P}\text{.E = mgh}$

(b)

Interpretation Introduction

Concept Introduction:

The work that is required to accelerate a body of a given weight from rest to its velocity is called kinetic energy. The kinetic energy of object is calculated by the formula,

$\text{K}\text{.E = }\frac{\text{1}}{\text{2}}{\text{mv}}^{\text{2}}$

(c)

Interpretation Introduction

Concept Introduction:

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.

$\text{q=smΔT}$

Where,

$\text{q=}$ Heat added

s= Specific heat

$\text{m=}$ Mass

$\text{ΔT=}$ Change in temperature.

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