1. What is meant by the process energy per kilogram for casting a metal? Why does it differ from the latent heat from melting the metal? 2. Carbon footprint. Make a bar chart of the CO2 footprint...

1. What is meant by the process energy per kilogram for casting a metal? Why does it differ from the latent heat from melting the metal?

2. Carbon footprint. Make a bar chart of the CO2 footprint divided by embodied energy, using data from the data sheets of Chapter 15, for

■ Cement

■ Low-carbon steel

■ Copper

■ Aluminum alloys

■ Softwood

Which material has the highest ratio? Why?