- #1
Roxy
- 52
- 0
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
- Start date
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- Tags
- Capacity Heat Heat capacity
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Discussion Overview
The discussion revolves around the heat capacity of sodium hydroxide (NaOH), specifically whether it pertains to solid NaOH or its solutions. Participants seek to clarify the appropriate values and context for calculations involving heat generation.
Discussion Character
- Debate/contested
- Homework-related
- Technical explanation
Main Points Raised
- One participant initially requests the heat capacity of NaOH, expressing difficulty in finding the information.
- Another participant provides a link to a Wikipedia page, suggesting it contains extensive information about sodium hydroxide.
- A participant questions whether the inquiry pertains to solid NaOH or a solution, indicating the importance of this distinction.
- One participant states they need the heat capacity for a calculation involving the formula q=mc(delta)t, emphasizing the need for the specific heat capacity (c).
- It is suggested that if the discussion is about a sodium hydroxide solution, the heat capacity can be approximated to that of water (4.2 J/K-gm).
- A later participant confirms that their inquiry was about a solution and mentions they received the needed information from their teacher.
- Another participant critiques the thread, arguing that some replies were unhelpful and emphasizes the importance of providing relevant answers rather than directing users to external sources.
- This participant also notes that the density of a sodium hydroxide solution is not equivalent to that of water unless it is very dilute.
Areas of Agreement / Disagreement
There is no clear consensus on the heat capacity of NaOH, as participants discuss both solid and solution forms, leading to differing implications for calculations. The discussion includes both helpful and unhelpful responses, indicating mixed views on the adequacy of the replies.
Contextual Notes
Participants express uncertainty regarding the specific form of NaOH being discussed (solid vs. solution), which affects the heat capacity values. The conversation also highlights the need for clarity in responses to avoid confusion.
- #2
whozum
- 2,219
- 1
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
- 52
- 0
i can't find it on there? 
- #4
Gokul43201
Staff Emeritus
Science Advisor
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You are working with solid NaOH (not solution) ?!Roxy said:
Why do you need the heat capacity ?
- #5
Roxy
- 52
- 0
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
- 183
- 0
How is the heat to be generated?Roxy said:
- #7
Gokul43201
Staff Emeritus
Science Advisor
Gold Member
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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
- 52
- 0
it was a solution.
I asked the teacher and got it thanks everyone
I asked the teacher and got it thanks everyone
- #9
swampie777
- 1
- 0
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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