- #1
Roxy
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Whats the heat capacity of NaOH I can't find it anywhere?
Whats the heat capacity of NaOH I can't find it anywhere?
- Thread starter Roxy
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SUMMARY
The heat capacity of solid sodium hydroxide (NaOH) is not readily available in common references, leading to confusion in calculations involving heat generation. For sodium hydroxide solutions, the heat capacity can be approximated to that of water, which is 4.2 J/K-gm. To accurately determine the heat generated using the formula q=mc(delta)t, it is essential to clarify whether the substance in question is solid NaOH or a solution. Reliable references for sodium hydroxide properties include Perry's Handbook of Chemical Engineering and DOW's chemical data.
PREREQUISITES- Understanding of thermodynamic principles, specifically heat capacity.
- Familiarity with the formula q=mc(delta)t for heat calculations.
- Knowledge of the properties of sodium hydroxide, both solid and in solution.
- Access to chemical engineering reference materials, such as Perry's Handbook.
- Research the specific heat capacity of solid sodium hydroxide.
- Learn about the heat capacities of various sodium hydroxide solutions.
- Explore thermodynamic calculations involving phase changes and heat transfer.
- Consult Perry's Handbook of Chemical Engineering for comprehensive chemical property data.
Chemical engineers, chemistry students, and professionals involved in thermal calculations or working with sodium hydroxide in various forms will benefit from this discussion.
- #2
whozum
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http://en.wikipedia.org/wiki/Sodium_hydroxide
More than you ever wanted to know about sodium hydroxide.
More than you ever wanted to know about sodium hydroxide.
- #3
Roxy
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i can't find it on there? 
- #4
Gokul43201
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You are working with solid NaOH (not solution) ?!Roxy said:
Why do you need the heat capacity ?
- #5
Roxy
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Gokul43201 said:You are working with solid NaOH (not solution) ?!
Why do you need the heat capacity ?
I need to calculate heat generated so I'm using this formula:
q=mc(delta)t
and i need c
- #6
pack_rat2
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How is the heat to be generated?Roxy said:
- #7
Gokul43201
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You didn't answer my (implied) question.Roxy said:
Are you talking about solid NaOH or a solution ?
If it is a sodium hydroxide solution, you can assume the heat capacity is equal to that of water (=4.2 J/K-gm).
- #8
Roxy
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it was a solution.
I asked the teacher and got it thanks everyone
I asked the teacher and got it thanks everyone
- #9
swampie777
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Review this thread. This is a serious impediment to forums. Several replies have nothing to do with the answer.
NOTE:
Requests for clarification are always valid.
A DUMP answer is where you tell someone to Google it or Wikipedia it. They have probably have already done this and that is why their asking here.
The DOW reference is good because they make Sodium Hydroxide. A good library reference on chemicals is Perry's Handbook of Chemical Engineering. It has a table of Sodium Hydroxide heat capacities for solutions.
And NO, the density of a solution is NOT the same as water unless it is very dilute.
Swampie777 ( Chemical Engineer)
NOTE:
Requests for clarification are always valid.
A DUMP answer is where you tell someone to Google it or Wikipedia it. They have probably have already done this and that is why their asking here.
The DOW reference is good because they make Sodium Hydroxide. A good library reference on chemicals is Perry's Handbook of Chemical Engineering. It has a table of Sodium Hydroxide heat capacities for solutions.
And NO, the density of a solution is NOT the same as water unless it is very dilute.
Swampie777 ( Chemical Engineer)
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