Right from the title the name of city reminds the reader to fuel that is generally used in the factory.

Starting from this first information in the reader's mind is formulated an idea of an industrial city. This idea finds confirmation in the description of town through a narrative technique in which the use of language appeals the senses and the impressions.

The city isn't natural, it is artificial, the red brick becomes unnatural red and black because of smoke. Here Dickens uses the view sense.

When he refers to a river that ran purple with ill-smelling dye recalls the smell sense and indirectly the blood image.

Idea of monotony of life in the city is conveyed by an anaphoric use of language (repetition of the word same) as repetitive is the life in Coketown: dedicate to work without possibility of entertainment.

Idea of Industrial Revolution is communicated via a metaphor, an interminable serpent of smoke comes out from the chimneys. The serpent isn't a positive figure, in the tradition it is Eve's tempter.

By this use of language the reader understands the implicit critic Dickens moved to a utilitarian society based on the work and on the production.

Dickens not leave the possibility to the reader to create his personal idea of Coketown, or he accepts what Dickens tells or he completely refuses it. There isn't the imagination in Coketown, there are only the work and the products, there are only black and white without grey shades.