Answer : The solubility of nitrogen in water at an atmospheric pressure will be, 
Explanation :
First we have to calculate the partial pressure of nitrogen.
Formula used :
where,
= partial pressure of nitrogen = ?
= mole fraction of nitrogen = 
= atmospheric pressure = 0.480 atm
Now put all the given values in the above formula, we get :
Now we have to calculate the solubility of nitrogen in water.
Formula used :
where,
= partial pressure of nitrogen = 0.375 atm
= solubility of nitrogen in water = ?
= Henry's constant = 
Now put all the given values in the above formula, we get :
Therefore, the solubility of nitrogen in water at an atmospheric pressure will be,
Answer: the reaction rate of the forward reaction increases (although it is not among the options shown).
Explanation:
1) The equation given is:
CO (g) + Cl₂ (g) ⇄ COCl₂ (g)
2) The forward reaction is:
CO (g) + Cl₂ (g) → COCl₂ (g)
3) The stoichiometry is 1 mole + 1 mole → 1 mole
4) Analysis and conclusion:
The effect of change in the conditions of an equilibrium is foreseen using Le Chatelier's principle.
Le Chatelier's principle states that a system in equilibrium will act trying to compensate the distress applied to the system.
In this case, the distress is increase in pressure.
To compensate the increase in pressure the system must act by reducing the number of moles in the system. Since the forward reaction implies the conversion of two moles of reagents into one mole of product, the more the forward reaction progress the less the number of moles will be present in the system and so the more the compensation of the increase in pressure. So the forward raction is favored by the increase in pressure.
Favoring the forwar reaction means that its rate will incrase,
Answer:
False
Explanation:
The Strong Nuclear Force is defined as an attractive force between neutrons and protons which is responsible to hold the nucleus together.
Electrostatic force is the repulsive or attractive force between two electrically charged objects.
Strong nuclear force is always greater than electrostatic force but changes with the distance. Strong nuclear attraction keeps the nucleus of an atom together in a small space as well which is stronger than their electrostatic repulsion.
it is said that, the strong nuclear force is the strongest force in the universe.
Hence, the given statement is false.
Answer:
Because number of electrons becomes greater than protons and atom form anion.
Explanation:
In order to understand this problem we must know about anion and cation.
Anion:
When an atom gain the electrons anion is formed. The negative sign shows that atom gain electron because number of electron are greater than protons or we can say that negative charge becomes greater than positive charge.
Cation:
When atom lose electron cation is formed. The atom thus have positive charge because number of positive charge i.e protons are increased are greater than negative charge or electron.
In given problem N gain three electrons which means negative charge becomes greater that's why the extra electron gained by atoms are written as -3.
Answer: The beaker will not tip over when placed on the hot plate
Justification:
Since beakers have flat surface bottoms (usually and this is the condition to use them for this particular application) they can be placed safely on the hot plate without the risk that the they tip over.
Beakers are wide mouth cylindrical vessels used in laboratories to store, mix and heat liquids. Most are made of glass, in which case the glass is resistant to the flame and does not break when exposed to high temperatures or when is heated by direct contact on a hot plate.
So, their safe shape (flat bottom) that makes them stable, along with their ability to withstand high temperatures, make them suitable to heat solutions in laboratories.
