A synthesis reaction (aka a combination reaction)
Answer:
1) Increases
2) decreases
3) increases
4) decreases
Explanation:
When the intermolecular forces in a liquid increases, the greater vapour pressure of the liquid decreases accordingly.
Since the vapour pressure is proportional to temperature, as temperature increases, the vapour pressure increases alongside.
As intermolecular forces increases, the boiling point increases accordingly since more energy is required to break intermolecular bonds.
Lastly, the greater the surface area, tell greater the vapour pressure since more liquid surface area is now available.
Correct answer is option C i.e. <span>The equilibrium shifts to the right.
Reason:
Following reaction is involved in present case:
N2 (g) + 3H2 (g) </span>⇄<span> 2NH3(g)
Now, according to </span><span>Le Chatelier's principle, if pressure is increased/decreased in system, the reaction equilibrium will move in direction to minimize this effect. So, if H2 is added in reaction system, it will increase pressure of reaction system. Hence, equilibrium will shift towards right, so as to minimize the effect of increasing pressure. </span>
Answer:
C) is less than 7
Explanation:
The dissociation constant, Ka of nitrous acid, HNO2 = 4.5 * 10^-4
Ammonia, NH3, is a weak base with a Kb value of 1.8x10^-5
When a weak acid like HNO2 reacts with an equivalent amount of a weak base NH3, complete neutralization does not occur. The concentrations of the species in equilibrium with each other will depend on the equilibrium constant, K, for the reaction,
Since the dissociation constant, ka of nitrous acid is higher, at equivalence point the pH of the solution will be slightly acidic with a pH that is less than 7.
Its like weight but not. mass is the amount of matter in a substance.