Answer:
Aqueous solution of ionic compounds conduct electricity while solid ionic compounds don't.
Explanation:
Ionic compound conduct electricity when liquid or in aqueous solution that is resolved in water because the ionic bonds of the compound become weak and the ions are free to move from place to place.
Ionic compounds don't conduct electricity while in solid state because the ionic bonds are to strong and ions cannot move around with lack of space for movement which makes the electric conductivity zero.
Answer:
Hepatitis C is a viral infection that causes liver inflammation, sometimes leading to serious liver damage. The hepatitis C virus (HCV) spreads through contaminated blood.
Answer:I don’t know this one
Explanation:
Answer: False
Explanation: Sandwich materials are usually in composite material form which has a fabrication of two thin layers which are stiff in nature and have light weighing and thick core .The construction is based on the ratio that is of stiffness to the weight .Therefore, the density of the material in the core is not high and are only connected with the skin layer through adhesive .So the given statement is false that sandwich materials typically use a high density core with non- structural cover plates.
Answer:
a) heat gain per unit tube length = 
b) heat gain per unit tube length = 
Explanation:
Assumptions:
- Constant properties
- Steady state conditions
- Negligible effect of radiation
- Negligible constant resistance between tube and insulation
- one dimensional radial conduction
a) What is the heat gain per unit tube length
Therefore 
heat gain per unit tube length =
b) What is the heat gain per unit length if a 10-mm-thick layer of calcium silicate insulation (k_ins = 0.050 W/m.K) is applied to the tube
and 
are the same, but 
changes.
Therefore:
The total resistance 
heat gain per unit tube length =
