Changing temperature of water to alter PH levels

In summary, the conversation discusses the difference in pH levels between water heated to approximately 90C and room temperature water, as well as the water ion product and the requirements for obtaining a profile picture on the forum. It is mentioned that the dependence of pH on temperature will vary depending on the purity of the water.
  • #1
Da Apprentice
59
0
If water were is heated to aproximately 90C will the water at this temperature have a different PH level to water at room temperature?

Thanks,
 
Chemistry news on Phys.org
  • #2
Water ion product.

That's for ultra pure water. "Water" that you deal with in normal lab is never as pure, so the dependence will be different.
 
  • #3
Borek said:
Water ion product.

Thanks, is was exactly what i needed. o:)

(BTW - how do you get pictures on your profile?)
 
  • #4
Da Apprentice said:
(BTW - how do you get pictures on your profile?)

It is a perk for contributors (and those that earned it in another way):

https://www.physicsforums.com/payments.php
 
Last edited by a moderator:
  • #5
yeah, I don't think i'll be getting 10,000 posts anytime soon... Aussie Dollars high but i'll wait till I get more involved in the forums. Thanks anyways for the help, much appreciated.
 

FAQ: Changing temperature of water to alter PH levels

What is the relationship between water temperature and pH levels?

The temperature of water can have a significant impact on its pH levels. Generally, as water temperature increases, the pH decreases and becomes more acidic. On the other hand, as water temperature decreases, the pH increases and becomes more alkaline. This is because temperature affects the rate of chemical reactions in water, which can impact the concentration of hydrogen ions and hydroxide ions, ultimately affecting the pH level.

How does changing the temperature of water alter its pH levels?

When water is heated, the molecules become more active and move around faster, increasing the rate of chemical reactions. This can lead to the dissociation of more water molecules into hydrogen ions (H+) and hydroxide ions (OH-), resulting in a decrease in pH. Similarly, when water is cooled, the molecules move slower, decreasing the rate of chemical reactions and reducing the concentration of hydrogen ions, resulting in an increase in pH.

Can changing the temperature of water be used to control pH levels?

Yes, changing the temperature of water can be used as a method to control pH levels. By adjusting the water temperature, you can manipulate the rate of chemical reactions and, therefore, the concentration of hydrogen ions and hydroxide ions, ultimately altering the pH level. However, it is essential to note that other factors, such as the initial pH level and the chemical composition of the water, can also impact the final pH level.

Are there any limitations to using temperature to alter pH levels in water?

While changing the temperature of water can be an effective method to alter pH levels, it is not a universal solution. The impact of temperature on pH levels may vary depending on the initial pH level and the chemical composition of the water. Additionally, extreme changes in temperature can also affect the solubility of certain chemicals, which can further influence the pH level. It is important to consider all factors and use temperature as one tool in a comprehensive approach to controlling pH levels in water.

What are some practical applications of changing the temperature of water to alter pH levels?

Changing the temperature of water to alter pH levels can have various practical applications. For example, in aquaculture, adjusting the water temperature can help maintain the optimal pH level for fish and other aquatic animals. In industrial processes, controlling the temperature of water can be used to regulate the pH levels of wastewater before it is discharged. It can also be used in scientific experiments and in everyday tasks, such as adjusting the pH level of water for gardening or cleaning purposes.

Back
Top