Applied Chemistry Final Exam

The capacity to do work is called

• Energy

• Heat

• Temperature

Energy that flows from a hotter to a colder object

• Energy

• Heat

• Temperature

The direction of heat flow is determined by

• Energy

• Heat

• Temperature

SI unit of heat is

SI unit of temperature is

The steps of creating electricity from coal in a power plant are

• Combustion

• Boil water in a closed, high pressure system

• Turn turbine to create electricity

Fill in the blank

What cause the power plant efficiency become low?

• No electric power plant can completely convert one

  type of energy into electricity

• Some of the energy is transferred into “useless” heat

• Random, thermal energy is transformed into ordered work

What factor is influenced the efficiency of power plant?

• Energy

• Heat

• Temperature

Are the combustible substances can be called as fuel?

• Yes

• No