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Chapter 8: Problem 24

A warm carbonated beverage seems to fizz more than a cold one when it is opened. Explain this based on the solubility of carbon dioxide in water.

Short Answer

Expert verified
Warm beverages fizz more because carbon dioxide is less soluble at higher temperatures.

Step by step solution

01

- Understand Solubility

Solubility is a measure of how much solute (in this case, carbon dioxide) can dissolve in a solvent (water) at a given temperature.
02

- Relationship between Temperature and Solubility

In general, the solubility of gases in liquids decreases with an increase in temperature. This means that warmer liquids hold less dissolved gas compared to colder liquids.
03

- Apply to Carbonated Beverages

A carbonated beverage contains carbon dioxide dissolved under pressure. When the beverage is warm, the increased temperature reduces the solubility of carbon dioxide in the liquid.
04

- Explain Fizzing

Upon opening a warm carbonated beverage, the reduced solubility causes more carbon dioxide to escape in the form of gas bubbles compared to a cold beverage. This is why a warm beverage seems to fizz more.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

temperature and solubility
The solubility of gases in liquids is heavily influenced by temperature. When we talk about solubility, we mean how much of a gas can be dissolved in a liquid at a specific temperature. This relationship is particularly important in understanding everyday phenomena.

As the temperature of a liquid increases, its ability to hold a dissolved gas decreases. For example, warmer water cannot hold as much dissolved oxygen as colder water. This is because gas molecules move more energetically at higher temperatures, making it easier for them to escape into the atmosphere.

To put it simply, when you heat up a liquid, the gas that鈥檚 dissolved in it wants to leave.
carbon dioxide in water
Carbon dioxide (CO鈧�) is a common gas that dissolves in water and other liquids. But like all gases, its solubility is affected by temperature. When CO鈧� dissolves in water, it forms carbonic acid, but this equilibrium can shift depending on the conditions.

In colder water, more CO鈧� can stay dissolved. This is why fish thrive in cold water bodies鈥攖he water holds more oxygen. When water is warm, CO鈧� is less soluble, and more of it escapes into the air. This is a key concept behind the fizzing of carbonated beverages.

It鈥檚 also why warm lakes and streams can suffer from low oxygen levels, which can harm aquatic life.
carbonated beverages
Carbonated beverages are drinks that contain dissolved carbon dioxide. This gives them their fizzy and bubbly nature. The process of carbonating these drinks involves dissolving CO鈧� under high pressure.

When you open a bottle or can of a carbonated beverage, you release the pressure, allowing CO鈧� to come out of solution and form bubbles. This process is influenced by temperature:
  • A cold carbonated beverage holds more CO鈧� because the gas is more soluble at lower temperatures.
  • A warm carbonated beverage holds less CO鈧� because the gas is less soluble and escapes more readily.


This explains why warm sodas fizz more vigorously than cold ones. The lower solubility of CO鈧� in warm liquids means more gas escapes quickly, creating a fizzing effect that is more noticeable.

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Most popular questions from this chapter

Choose the word or phrase that best answers the question. When chlorine compounds are dissolved in pool water, what is the water? A) the alloy B) the solvent C) the solution D) the solute

How a liquid-solid solution forms. How is this different from a liquid-gas solution? How are these two types of solutions different from a liquid-liquid solution? Give an example of each with your description.

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