Unit 2: Elementary Physical, Chemical and Thermodynamic Principles COPY

Question 1

Wet Steam

Answer 1

Wet steam is a mixture of steam and liquid water. It exists at a saturation temperature containing more than 5% water. … Wet steam lowers the heat transfer efficiency of steam, which results in an inefficient sterilization procedure. Wet steam is also known as supersaturated steam.

Question 2

Superheated steam

Answer 2

Superheated steam is steam at a temperature higher than its vaporization point at the absolute pressure where the temperature is measured. Superheated steam can therefore cool by some amount, resulting in a lowering of its temperature without changing state from a gas, to a mixture of saturated vapor and liquid.

Can be around 500 Degrees C and over 16,000 KPa

Question 3

What is Steam?

Answer 3

the vapor into which water is converted when heated, forming a white mist of minute water droplets in the air