From the ideal gas equation, we know that PV = nRT
where, P = pressure, V = volume occupied, n = number of moles of gas, R = universal gas constant=0.082L atm mol-1 K-1 and T = temperature.
Given: P = 2.8 atm, V = 98 l and T = 292 k.
Therefore n =
=
= 11.46
Answer: 0.75 moles of Phosphorus and 4.5 moles of Hydrogen are produced respectively from 3 moles of Phosporus.
Explanation:
4PH3 --------> P4 + 6H2
From the stochiometry of the reaction,
4 moles of Phosphine gives 1 mole of Phosphorus
3 moles of Phosphine will give (3×1)/4 moles of Phosphorus.
Therefore, 0.75 moles of Phosphorus is produced.
Similarly, 4 moles of Phosphine gives 6 moles of Hydrogen
3 moles of Phosphine will give (3×6)/4 moles of Hydrogen.
Therefore, 4.5 moles of Hydrogen is produced.
QED!
Option c is correct bcoz neutrons and protons exist inside nucleus whereas electrons revolve around it
hope it helped
Oil heats hotter and faster than water due to its components. i hope this helps
Answer:
The answer to your question is C. Bromine
Explanation:
Metals form positive ions (cations)
Nonmetals form negative ions (anions)
Potassium is an alkaline metal, Magnesium and Strontium are alkaline earth metals, so they form positive ions.
Bromine is a halogen, so it is a nonmetal that forms negative ions.