Test: Specific Heat - Chemical Engineering MCQ

It is a block of ceramic materials. It is built to withstand high temperature, but a low thermal conductivity.

Specific heat of bakelite is 1465 J/kg K while that of asphalt, chrome brick and fire clay are 920 J/kg K, 835 J/kg K and 960 J/kg K respectively.

Asphalt is a composite material used to surface roads and airports. It is produced by heating the asphalt binder to decrease its viscosity.

It is also known as polyoxybenzylmethylenglycolanhysride. It is a thermosetting phenol formaldehyde resin. Bakelite was used for its electrical non conductivity.

Specific heat of concrete is 880 J/kg K while that of coal, banana and clay are1260 J/kg K, 3350 J/kg K and 890 J/kg K respectively.

The carbon content of coal is around 60% – 80%. The rest is composed of water, air, hydrogen and Sulphur.

It is also known as polyethylene. These are highly strain resistant and is used as cushioning and insulating materials in pillows.

Specific heat of magnesite is 1130 J/kg K while that of sand, barea and limestone are 800 J/kg K, 745 J/kg K and 810 J/kg K respectively.

There is a weak bonding between the molecules of sand particles due to which it is exposed to high temperature when left free in atmosphere.

Specific heat of pyrex is 835 J/kg K while that of ice, paraffin and rubber are 2040 J/kg K, 2890 J/kg K and 2010 J/kg K respectively.