p-BLOCK ELEMENTS REASONING QUESTION
Though nitrogen exhibits +5 oxidation state,
it does not form pentahalide. Give reason.
9. Mention the conditions required to maximize the
yield of ammonia.
2. PH3 has lower boiling point than NH3. Why?
10. Why does
1. Anomalous behaviour of p-block
Anomalous behaviour of first element in the p
elements is attributed to small size, large
(charge/radius) ratio, high ionization enthapy, high
electronegativity and unavailability of d
Preparation and Properties
J.Saiprasad - 9790835854
It is prepared by fusion of chromate ore
(FeCr2O4) with sodium carbonate in excess of air.
4FeCr2O4 + 8Na2CO3 + 7O2 8Na2CrO4 + 2Fe2O3 + 8CO2
Arsha Vidya Mandir
Teacher : Aparna
Class : XII A & B
Subject : Physics
Homework No. 1
Posted Date (visible to
(Submission by the
Topics: Electrostatic force and
WORK SHEET FOR HALOALKANES AND HALOARENES 2
Complete the equation
WORK SHEET FOR HALOALKANES AND HALOARENES - 1
Find the mono-chloro compounds formed by the following hydrocarbons on halogenations:
c) C11H24 and give its IUPAC names.
2) Write the isomers and give the IUPAC name of the compound havin
p- Block Reasoning Questions:
Nitrogen (N) does not from pentahalide while P froms PCl5, PF5, and PF6.
Though nitrogen forms pentoxide but it does not form pentachloride.
Nitrogen forms N2 but phosphorus forms P4 at room temperature. Why?
Before the experiment was carried out, a few assumptions was taken into account for mass balance:
The NaHCO3 used to make the solution is pure (does not contain other elements)
Gas collected in gas syringe con
Specific enthalpy of
4.217 1.007 4216.10 0.001
It is often necessary to interpolate between the data provided in a table to find values of
properties for conditions not listed in these tables. For this purpose, we use linear
interpolation based on the assumption that the propertie
The constants o f the Bender equation o f state were determined for ethane and propane.
For these two substances and for methane, ethylene and propylene pressure~nthalpy
diagrams and tables of saturation properties were calculated.
FORMULAS -THERMODYNAMICS I
1. PROPERTIES OF PURE SUBSTANCES
+ (1 - x)U
PV = RT
S = xS g + (1 - x)S f
; H = mH
; S = mS; V = mV
U = mU
2. ENERGY ANALYSIS OF CLOSED SY
RECENT APPLICATIONS OF IONIC LIQUIDS IN SEPARATION TECHNOLOGY
May 10, 2013
With the recent financial crisis, corporations around the world have been trying to reduce the
cost of production. Ionic liquids(ILs) with its interesting characterist