Chapter 2, Problem 2.8P

Interpretation Introduction

(a)

Interpretation:

The calculations, showing all the units should be carried out.

Concept introduction:

Energy is given by

$E=p\times t$

E = Energy of the system, p = power of system, and t = time.

The international system of unit (SI units):

Day is represented by the symbol	d
Week is represented by the symbol	wk
Hour is represented by the symbol	h
Minutes is represented by the symbol	min
Seconds is represented by the symbol	s
Microsecond is represented by the symbol	µs
Meter is represented by the symbol	m
Feet is represented by the symbol	ft
Kilometer is represented by the symbol	km
Kilogram is represented by the symbol	kg
Pound is represented by the symbol	lb

Interpretation Introduction

(b)

Interpretation:  To interpret power unit for a plant generate annually.

Concept introduction:

Energy is given by

$E=p\times t$

E = Energy of the system, p = power of system and t = time.

Day is represented by the symbol	d
Week is represented by the symbol	wk
Hour is represented by the symbol	h
Minutes is represented by the symbol	min
Seconds is represented by the symbol	s
Microsecond is represented by the symbol	µs
Meter is represented by the symbol	m
Feet is represented by the symbol	ft
Kilometer is represented by the symbol	km
Kilogram is represented by the symbol	kg
Pound is represented by the symbol	lb

Interpretation Introduction

(c)

Interpretation:

Why student wrong in saying that plant produces $\text{100}\frac{\text{MW}}{\text{hr}}$

Concept introduction:

Unit of megawatt is equal to joule per second and power is equal to the ratio of energy and time.