The physical properties of a compound are similar to those of its elements. true or false

The given statement is false.

Explanation:

Chemical changes are defined as the change which tend to show difference in chemical composition of a substance.

For example, toxicity, reactivity, combustion etc are all chemical properties.

A chemical change will always lead to the formation of a new compound.

On the other hand, a change which is unable to bring any difference in chemical composition of a substance is known as a physical change.

For example, change in shape, size, mass, volume etc are all physical properties.

A compound is a combination of two or more different elements that are chemically combined together in a fixed ratio by mass.

So, properties of a compound is completely different from the elements from which it is made.

For example, NaCl is a compound whose properties will be different from sodium element and chlorine element.

Thus, we can conclude that the statement physical properties of a compound are similar to those of its elements, is false.

level 4 to level 2 : ))

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.