51 - Thermodynamics and Thermochemistry Questions Answers

Asked By: SANGEETHA 1 year ago
is this question helpfull: 1 3 submit your answer

for the melting point of NaCl heat required is 7.26 kcal/mole and entropy increases by 6.73 cal/mol/k.the melting point of the salt

Asked By: SANGEETHA 1 year ago
is this question helpfull: 6 3 submit your answer
entropy of vaporisation of water at 100°C if molar heat of vaporisation is9710 cal/ mo
Asked By: ANAMIKA MEENA 2 year ago
is this question helpfull: 33 14 submit your answer

the enthalpies of neutralisation of a weak acid HA and a weak acid HB by NaOH are -6900 cal/equivalent and -2900 cal/equivalent, respectively. when one equivalent of NaOH is added to a solution containing one equivalent of HA and one equivalent of HB the enthalpy change was -3900 cal. in what ratio is the ratio is the base distributed between HB and HA?

Asked By: AISHA SIDDIQUI 2 year ago
is this question helpfull: 15 0 submit your answer
the heat of atomisation of gaseous p4 isx then p-p bond energy is
Asked By: RAJA DASH 3 year ago
is this question helpfull: 2 0 submit your answer

integral enthalpy of solution of kcl, when 1 mol of it is dissolved in 20 mol water is +15.90 kj. when 1 mol of it is dissolved iin 200 mole , change in enthalpy is 15.58kj calculate enthalpy of hydration or dilution

 

Asked By: PRINXC 4 year ago
is this question helpfull: 14 10 submit your answer

A gas expands against a variable external pressure given by p = 10/V atm, where V is the volume at each stage of expansion. in expanding from 10 L to 100 L, the gas undergoes a change in internal energy ΔU = 418 J. How much heat has been absorbed?

Asked By: RICHIK BANDYOPADHYAY 5 year ago
is this question helpfull: 15 2 submit your answer

HA + OH- = H2O + A- + q1 kJ

H+ + OH- = H2O + q2 kJ

The enthalpy of dissociation of HA is

Asked By: SWATI KAPOOR 5 year agoSolved By: SWATI KAPOOR
is this question helpfull: 7 4 read solutions ( 1 ) | submit your answer

ΔHf  C2H4 = 12.5 kcal

Heat of atomization of C = 171 kcal  

Heat of atomization of H = 52.1 kcal  

Bond energy CH = 99.3 kcal .

What is C=C bond energy?

Asked By: SWATI KAPOOR 5 year ago
is this question helpfull: 17 4 submit your answer
Answer Strategies and trick by Manish sir (it will help you to solve it by yourself)

2 heat of atomization of C + 4 heat of atomization of H - 4 bond energy of C-H - 1 bond energy of C=C = heat of formation of C2H4

2*171 + 4*52.1 - 4*99.3 - x = 12.5

solve

Integral enthalpy of soln of KCl , when 1 mole of it is dissolved in 20 mole water is +15.90kJ . When 1 mole of it is dissolved in 200mole water  dH =15.58kJ. Calculate enthalpy of hydratn or dilutn ??

 

ans is 2.68kJ

Asked By: SARIKA 5 year ago
is this question helpfull: 8 1 read solutions ( 2 ) | submit your answer
Answer Strategies and trick by Manish sir (it will help you to solve it by yourself)

Integral enthalpy 

please check this word if wrong submit the correct question again

Login Here

username / email :

password :

register | forget password