The correct option is D.
The hydrogen atoms that are attached to the nitrogen atom in the ammonia molecule are capable of forming hydrogen bond. The hydrogen bond that exist in the ammonia molecule is the reason why it shows higher boiling point compare to the other hydrides. Hydrogen bond occur in ammonia because ammonia is one of the most electronegative elements.
<u>Answer:</u>
211.9 J
<u>Explanation:</u>
The molecules of water release heat during the transition of water vapor to liquid water, but the temperature of the water does not change with it.
The amount of heat released can be represented by the formula:
where 
= heat energy, 
= mass of water and 
= latent heat of evaporation.
The latent heat of evaporation for water is 
and the mass of the water is 
.
The amount of heat released in this process is:
211.9 J
Answer:
C.
Explanation:
The same amount of force reacts to you
Answer:
Hydrogen has three isotopes 1H, 2H, and 3H. What is the difference between these three isotopes? The number of neutrons ranges from 0 to 2. You just studied 25 terms!
Answer:
NaF>NH3>H2S>CO2
Explanation:
The boiling point of a substance depends on the magnitude of electronegativity difference and the type of bond between the atoms of the compound in question.
NaF is an ionic substance. Ionic substances have a high melting and boiling point due to the fact that the ionic lattice contains a large number of ions. This means that a lot of energy is usually required to overcome this ion-ion interaction therefore ionic compounds usually have high melting and boiling points.
Nitrogen is more electronegative than sulphur hence NH3 is more polar than H2S and consequently NH3 has a higher boiling point than H2S due to stronger dipole-dipole interaction.
CO2 is a nonpolar molecule hence it has the lowest boiling point. Only weak dispersion forces exist in CO2.
