1800-150-456-789
FlagBACK
Flag Physical Chemistry> Thermodynamics...
question mark

The heat of neutralisation of strong dibasic acid in dilute solution by NaOH is nearly

Chandrakesh Shukla , 14 Years ago
Grade 12
anser 2 Answers
Ramesh V

Last Activity: 14 Years ago

The values obtained were: for  H2SO4-NaOH, is  13.48  k.cal. per gm-equiv. and 

for HCI-NaOH,  13.523  kcal.  per gm-equiv.

--

regards

Ramesh

Ashwani Dubey

Last Activity: 5 Years ago

Valency factor of NaOH = 1
Valency factor of dibasic acid = 2
Thus only 1 gram equivalent of dibasic acid is neutralised by 1 gram equivalent of NaOH.
As we know that, for the reaction-
$$\underset{\text{acid}}{{H}^{+}} + \underset{\text{base}}{{OH}^{-}} \longrightarrow {H}_{2}O; \quad \quad \Delta{H} = -13.7 \; {KJ}/{mol}$$
Hence the heat of neutralisation of a strong dibasic acid in dilute solution by NaOH is -13.7 kcal/mol.

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on Physical Chemistry

question mark
Which of the following aqueous solutions remains neutral afterelectrolysis
Physical Chemistry
0 Answer Available

Last Activity: 2 Year ago(s)

question mark
In the reaction A + 2B ⇌ 2C, if 2 moles of A, 3 moles of B and 2 moles of C are placed in a 2 L flask andthe equilibrium concentration of C is 0.5 mol/L. The equilibrium constant (KC) for the reaction is.....and please tell how you know that the reaction is going forward .. imean how to calculate the reaction quotient ???
Physical Chemistry
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
True or false when an electron in ground state of hydrogen atom is excited with an energy that is greayer than e2-e1 but less than e3-e1 the electron will get excited n=2
Physical Chemistry
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
18 19 gram mixture of na2co3 and nahco3 on heating gives 2.2 gram CO2 gas find the percent nahco3 (by mass) in mixture
Physical Chemistry
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
A 100 cm cube solution of sodium carbonate is prepared by dissolving 8.653 g of salt in water the density of solution is 1.0816g per ml what are the molarity and molality of the solution.
Physical Chemistry
1 Answer Available

Last Activity: 2 Year ago(s)