<u>Answer</u>:
A solid will melt at the temperature at which the kinetic energy breaks the
inter-molecular attractions.
<u>Explanation</u>:
The melting point is the state at which "a substance changes its temperature from a solid to liquid". At the melting point temperature, there is an equilibrium between the both the solid and the liquid phase. When the solid particle is heated by increasing the temperature the particle in the solid vibrate quickly and it absorbs kinetic energy.
It leads to the breaking of the organisation of particle in between the solid and that leads to the melting of solid. Thus, at the melting point, the kinetic energy breaks the inter-molecular attractions.
The general properties of Group 1 alkali metals are:
1. They form cations.
2. They are highly reactive.
3. They have a charge of +1.
4. They form ionic compounds.
5. When their oxides or hydroxides are reacted in water, they form alkalis i.e. bases.
6. They are usually soft in nature.
7. They have low densities.
<span>The process in which particles dissolve by breaking apart and shattering is called </span>dissociation. I hope this helped
Explanation:
The given data is as follows.
Cross-section area of the rectangular is as follows.
Area = 
= 
= 
Tension applied on the specimen is 35,500 N
Now, formula to calculate the modulus of elasticity for a material of aluminium is as follows.
E = 70 GPa
= 
or, = 
Now, stress on the specimen is as follows.
= 
= 
According to Hook's law, we will calculate the resulting stain as follows.
= 
= 
Thus, we can conclude that the resulting strain is .
There are no common compounds for argon because its oxidation number is zero which means it wont form compounds easily.
