Chapter 2, Problem 2.8P

Interpretation Introduction

Interpretation:

The time taken for the temperature of the water to rise to 30°C if no heat is lost from the water.

Concept introduction:

The mathematical expression for heat supplied is given by:

Q= $m\times C_P\times \Delta T$

Where, Q = heat
m = mass

  ${\text{C}}_{\text{P}}$ = specific heat capacity

  $\Delta \text{T}$ = change in temperature

After that, for calculating time, heat supplied is equal to the product of power and time. Thus, time taken will be calculated.