Polystyrene is widely used as packaging materials for fra...
Polystyrene is widely used as packaging materials for fragile objects during transportation because of its
lightness
low density
high density
high compressibility
Correct answer is D
EPS is known as one of the world’s most effective and lightweight insulation and packaging materials. It has low thermal conductivity and is moisture resistant, so it is often used as insulation against changing temperatures. Its high compressive strength gives it excellent shock absorption properties, making it an efficient packaging material.
In the diagram above, mixture Y is ...
The mass of potassium hydroxide required to make 300.ocm3 of 0.4 moldm-3 solution is {KOH = 56.0}...
The modern process of manufacturing steel for iron is by ...
The molecular shape and bond angle of water are respectively ...
Which of the following compounds has the same empirical formula as benzene? ...
Which of the following methods is commonly used to remove suspended impurities from water? ...
The energy change that accompanies the addition of an electron to an isolated gaseous atom is ...