Chapter 7, Problem 7.129QP

Interpretation Introduction

Interpretation:

The number of photons at $\text{660nm}$ are required to melt given amount of ice has to be calculated.  Also the number of water molecules are needed for one proton to convert from ice to water has to be determined.

Concept introduction:

The energy of each photon is given as

$\text{E}\text{=}\text{hν}$

h is the Planck’s constant ($\text{6}\text{.63}\text{×}{\text{10}}^{\text{-34}}\text{J}\text{.s}$ ) which relates energy and frequency.

$\text{ν}$ is the frequency.

E is the energy of light particle.

The mathematical equation of various characteristics of light wave is given as follows,

$\text{c = νλ}$

C is the speed of light ($\text{3}{\text{.00 × 10}}^{\text{8}}\text{ m/s}$).

$\text{ν}$ is the frequency

$\text{λ}$ is wavelength.