Energy Balance on a Condenser

[@katcruz9872]

For 4:44 shouldn't the equation for specific heat be Cp=a+bT+cT^2+dT^3, not Cp=a+bT+cT+dT^3?

[@InfinityLRDL]

Kat Cruz you are correct

[@LearnChemE]

Yes, thank you. We will make this change soon.

[@0xbinarylol]

@@LearnChemE This is the Form 1

[@פרנךיוסה]

Would LaPlace transformation be in order to solve this problem, too?

[@usamasaeed5842]

How should energy balance be done when you don't the outlet stream temperatures nor heat duty enthalpy change in the process?

[@PraveenPraveen-dg3sp]

May I know what was the table was ?...that is used here for reference of cp

[@jadjaafar5203]

Praveen Praveen you can get these data from the book elementary principles of chemical processes by felder and Rousseau or from Perry’s chemical engineering handbook

[@syed_taha_ahmed]

How this method is difference from lmtd method?

[@dipndotz414]

The very first calculation for delta h1 at minute 5:20. I can't get the same result, I get -3.36 kJ/mol. You're supposed to integrate so you then solve a*(-44) + b/2*(-44^2) + c/3*(-44^3) ???

[@dnshist]

You have not integrated properly. Instead of using -44 retry with [a*56+(b/2)(56^2)+...] -[a*100+(b/2)(100^2)+...] and you should get the same answer as above.

[@SuperThausif]

Not -44^2. It is 56^2 - 100^2

[@invincibleboy3445]

Is it the same calculation used in process design simulation

[@yjmsniper]

So if you have an exothermic reaction, which is a negative energy flow. to cool it down you have to put in the opposite energy (positive) But for somereason condensors are negative energy flow.

[@souravkumar2522]

If cooling is in vaccum medium ...than how to calculate cooling duty

[@chloegut2079]

For the calculation of Cp, do we use the temperatur in degree or in Kelvin ?

[@gia-vyngo]

Celsius

[@alphabeta9032]

Can you please make a video on condensation of Binary mixture of vapor (Say Ethanol+water vapors) in a condensor. Many thanks in advance.

[@adarshgowda2287]

Can you make a video on energy balances ?

[@LearnChemE]

Here's a playlist for energy balances: kzbin.info/aero/PL4xAk5aclnUiDazeSqz59Zb9NC1a2AK0q

[@ibrahimkocgurbuz1705]

This answer is true false ? Please help

[@Alextheprod]

Isn't (n dot)(sum of enthalpy) = to negative Q? You have to subtract Q to the other side of the energy balance?

[@LearnChemE]

The changes in enthalpy are negative, which in turn makes Q negative. That makes sense because it is a cooling operation. Does that answer your question?

[@kocengineering769]

Sir It is a+ bT+cT2 + dT3

[@srinivasanvasan1952]

Actone boiling point 54 to 56 degree celius

[@dhruvmoriyawala8469]

Why we not use mCp∆T ??

[@LearnChemE]

Great question. It's because in this case Cp is dependent on temperature, so it is not constant over the temperature range.

[@adolfocuevas5600]

@@LearnChemE Hi ! How can we know if it will be constant or not ?

[@usamasaeed5842]

@@LearnChemE I think we can calculate by mCp∆T, by taking the average of inlet and outlet temperatures. And at that average temperature we would find CP to incorporate into mCp∆T equation.

[@alialkinany2248]

Please how can I get the reference 😢😢

[@alhabeebmasoud742]

reference point is constant and will be available on a given table

[@kocengineering769]

Any chemical engineer here in comments section plz reply me back

[@mohammada4523]

yerrrr

[@andyoohhh2061]

Thank you!

[@1212202012122012]

Very helpful

[@anmarsamir4118]

hi ,any one ,any one can send me lectures of basic principle of chemical engineering thanx very much

[@bharathm3298]

anmar samir hi I want energy balance for making of bread

[@panagiotisathanasiou7918]

It is kJ/s not kJ/sec sit down and study proper writing