Chapter 1, Problem 1.39P

(a)

Interpretation Introduction

Interpretation:

The body temperature of bird in degree Celcius $\left(\text{°C}\right)$ and Kelvin $\left(\text{K}\right)$ is to be calculated.

Concept introduction:

The temperature of an object is the measure of the coldness and hotness of the object relative to another object. The S.I unit of temperature is Kelvin $\left(\text{K}\right)$. The other units of temperature are degree Celcius $\left(\text{°C}\right)$ and Fahrenheit $\left(°\text{F}\right)$.

The first is the Fahrenheit $\left(\text{°F}\right)$ scale common in the United States. On this scale, the freezing point of water is $\text{32 °F}$ and the boiling point is $\text{212 °F}$. The room temperature is around $72°\text{F}$ on this scale.

The other scale common in countries apart from the United States is the Celsius $\left(\text{°C}\right)$ scale. On this scale, the freezing point of water is $\text{0 °C}$ and the boiling point of water is $\text{100 °C}$. The room temperature is around $\text{22 °C}$.

The third scale is the Kelvin scale which is also known as Absolute scale.

The conversion factor to convert temperature from degree Celsius to Kelvin is,

$T\left(\text{K}\right)=T\left(\text{°C}\right)+273.15$                                                                                             (1)

The conversion factor to convert temperature from Fahrenheit to degree Celsius is,

$T\left(°\text{C}\right)=\frac{5}{9}\left(T\left(\text{°F}\right)-32\right)$                                                                                             (2)

(b)

Interpretation Introduction

Interpretation:

The melting point of tungsten in Kelvin $\left(\text{K}\right)$ and Fahrenheit $\left(°\text{F}\right)$ is to be calculated.

Concept introduction:

The temperature of an object is the measure of the coldness and hotness of the object relative to another object. The S.I unit of temperature is Kelvin $\left(\text{K}\right)$. The other units of temperature are degree Celcius $\left(\text{°C}\right)$ and Fahrenheit $\left(°\text{F}\right)$.

The first is the Fahrenheit $\left(\text{°F}\right)$ scale common in the United States. On this scale, the freezing point of water is $\text{32 °F}$ and the boiling point is $\text{212 °F}$. The room temperature is around $72°\text{F}$ on this scale.

The other scale common in countries apart from the United States is the Celsius $\left(\text{°C}\right)$ scale. On this scale, the freezing point of water is $\text{0 °C}$ and the boiling point of water is $\text{100 °C}$. The room temperature is around $\text{22 °C}$.

The third scale is the Kelvin scale which is also known as Absolute scale.

The conversion factor to convert temperature from degree Celsius to Kelvin is,

$T\left(\text{K}\right)=T\left(\text{°C}\right)+273.15$                                                                                             (1)

The conversion factor to convert temperature from degree Celsius to Fahrenheit is,

$T\left(\text{°F}\right)=\frac{9}{5}T\left(°\text{C}\right)+32$                                                                                                 (3)

(c)

Interpretation Introduction

Interpretation:

The surface temperature of the sun in degree Celcius $\left(\text{°C}\right)$ and Fahrenheit $\left(°\text{F}\right)$ is to be calculated.

Concept introduction:

The temperature of an object is the measure of the coldness and hotness of the object relative to another object. The S.I unit of temperature is Kelvin $\left(\text{K}\right)$. The other units of temperature are degree Celcius $\left(\text{°C}\right)$ and Fahrenheit $\left(°\text{F}\right)$.

The first is the Fahrenheit $\left(\text{°F}\right)$ scale common in the United States. On this scale, the freezing point of water is $\text{32 °F}$ and the boiling point is $\text{212 °F}$. The room temperature is around $72°\text{F}$ on this scale.

The other scale common in countries apart from the United States is the Celsius $\left(\text{°C}\right)$ scale. On this scale, the freezing point of water is $\text{0 °C}$ and the boiling point of water is $\text{100 °C}$. The room temperature is around $\text{22 °C}$.

The third scale is the Kelvin scale which is also known as Absolute scale.

The conversion factor to convert temperature from Kelvin to degree Celsius is,

$T\left(\text{°C}\right)=T\left(\text{K}\right)-273.15$                                                                                             (4)

The conversion factor to convert temperature from degree Celsius to Fahrenheit is,

$T\left(\text{°F}\right)=\frac{9}{5}T\left(°\text{C}\right)+32$                                                                                                (3)