Physical Chemistry Answers

In the following equilibrium, predict the direction of shift of equilibrium for each
condition listed below:
N2
(g) + 3H2
(g) 2NH3
(g) + 92 kJ
i) Addition of H2
ii) increased pressure
iii) lowering of temperature.

Give the statements of Zeroth, First, Second and the Third laws of thermodynamics
and outline their significance.

Define standard enthalpy of formation and describe a method for its direct
determination with the help of an example.

Differentiate between enthalpy driven and entropy driven reactions with the help of
suitable examples.

Carbon dioxide is librated in the reaction of the ore hematite (fe²o³)with coke (c) for the production of iron.if the hypothetically as a member of a blast furnace you are told you have 20.5Mg (megagrams)of Fe2O³and 2.84Mg of coke hand.
a.which would you order first- another shipment of iron ore or coke? justify
b.how many megagrams of iron you make with the materials u have (Mg =megagrams)

lewis dot structure for (SnCl5)-

Among the molecules given below, identify those which are microwave active.
Br2, HF, CO2 and CO

The bond enthalpies of N–N, N=N and N≡N bonds are not in the ratio 1:2:3. Explain the reason.

Arrive at the Lewis structures of sncl5- and IF4+

how many oxygen aroms are there in 6 co2 molecules