Answer:
a) Same
b) Nitrogen
c) Same
d) Nitrogen
Explanation:
a)
The formula for partial pressure of a gas is equal to
Here nB is the number of moles .
The number of moles for both the gases are same and hence the partial pressure for the two gases will also be same.
b) The greater average velocity is calculated by using following formula
Here M is the molar mass.
Molar mass of nitrogen is greater than the molar mass of xenon and hence nitrogen will have higher greater average velocity
c) As we know, the average kinetic energy of gas particles is dependent on the absolute temperature of gas and if all the gases are at same temperature, their kinetic energy will also be same. Since nitrogen and xenon are at same temperature, their kinetic energy will be same
d) Effusivity is depended directly on the thermal conductivity, density and and the specific heat capacity.
All these three parameters are higher in case of nitrogen. Thus, it will effuse first
Answer is: a. from left to right across a period.
The ionization energy (Ei) is the minimum amount of energy required to remove the valence electron, when element lose electrons, oxidation number of element grows (oxidation process).
Alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons (one electron, earth alkaline metals (right next to alkaline metals) have higher ionization energy than alkaline metals, because they have two valence electrons.
Nonmetals are far right in the main group and they have highest ionization energy, because they have many valence electrons.
Answer:
The moon is closer to Earth than the sun! (Last one)
Explanation:
Explanation:
On one side , there is high concentration of potassium ion and chloride ions. And on other sides high concentration of sodium ions and phosphate ions.
![[K^+][Cl^-]|[Na^+][PO_2^{-}]](https://tex.z-dn.net/?f=%5BK%5E%2B%5D%5BCl%5E-%5D%7C%5BNa%5E%2B%5D%5BPO_2%5E%7B-%7D%5D)
Cell is permeable only to chloride ions.As we can see that chloride ions are only present on the outside of cell .
As we know solute particles move from higher concentration to lower concentration side that is to equalize the concentration of solute particles on both sides. So, chloride ion will move inside the cell until the concentration of chloride ions become equal on both the sides which will result in swelling up of cell.
Answer:
Order of hydrocarbons in decreasing order of boiling point:
Paraffin > Hexadecane > Pentane > Dimethylpropane > Butane
Explanation:
Boiling points of hydrocarbons depend upon:
Mass of the hydrocarbon
Intermolecular forces of interaction
Hydrocarbons of greater mass or greater number of carbons have greater molecular mass.
Molecular formula of paraffin is 
Molecular formula of hexadecane is 
Among given hydrocarbons, number of carbon is highest in paraffin and hence has highest boiling point.
Boiling point of paraffin is followed by hexadecane having second highest number of carbon.
Mass of dimethylpropane and pentane are comparable. But boiling point of dimethylpropane is less than pentane. This is because branching decreases intermolecular force of attraction (van der Waal's force) which leads to decrease in boiling point.
No. of carbon in butane is least among given. So its boiling point is lowest.
Hence, Order of hydrocarbons in decreasing order of boiling point:
Paraffin > Hexadecane > Pentane > Dimethylpropane > Butane
