If a substance is not at its melting or boiling point, as the heat content of a sample of matter increases;
- Its temperature increases
- The space between particles increases
- The particles move faster
Explanation:
As heat energy is applied to a substance, its temperature increases. The molecules of the gain more kinetic energy and the bombardment between the molecules increase with frequency and energy. The distance between the molecules also increases and this is attributed to the expansion of substances when heated. This continues until temperatures are reached where the kinetic energy of the molecules is high enough to overcome the intermolecular forces between the molecules and the substance changes phase.
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Answer:
218.09g
Explanation:
the formula for density is mass/volume
you have volume so rlly what you have is 19.3g/cm3=m/11.3cm3
so mass equals density x volume
and 19.3 x 11.3 = 218.09
Solution :
<u>Explanation 1 </u>:
Spontaneity of the reaction is based on two factors :
-- the tendency to acquire a state of minimum energy
-- the energy of a system to acquire a maximum randomness.
Now, since there isn't much difference in the bond enthalpies of B-F and B-Cl. So, we can say the major driving factor is tendency to acquire a state of maximum randomness.
<u>Explanation 2 </u>:
A system containing the B halides has a than a system of and .
It has the same number of , but more distinguishable kinds of , hence, more microstates and higher entropy.