Best Answer: the rate of diffusion is directly proportional to the concentration gradient. The greater the difference in concentration between two areas, the greater the rate of diffusion.
EPC-40: Electrical Plastic Conduit : Designed for normal duty application. EPC-80: Electrical Plastic Conduit : Designed for heavy duty application.
Energy Performance Certificate. An Energy Performance Certificate (EPC) contains information about how energy is used in a home or a business premises, along with details of how much the energy used actually costs.