Question

Which gas is dissolved in soft drinks like Coke and Pepsi?
1. Nitrogen
2. Carbon dioxide
3. Sulphur dioxide
4. Oxygen

Answer 1

Correct Answer - Option 2 : Carbon dioxide

The correct answer is Carbon dioxide.

• Carbon dioxide (CO₂) gas is present in the bottle of a cold drink.
• When the coke is made in a Coca-Cola plant, the workers pump carbon dioxide into the coke to carbonate it.
  • It is because of this gas (CO2) that we burb.
  • This gas is carbonic acid.
  • It is because of this gas that the cold drink has an acidic flavor and an interesting mouthfeel.
• When you open a soda can or bottle, the carbon dioxide will begin to come out of the soda and into the air.
• When we put cold-drink s in cold(refrigerator )the water-soluble gas (CO2) molecules become less energetic and the longer they stay in solution.
• This process is known as carbonation, which is a process that causes the water to become effervescent.

 

• The carbon dioxide that can be dissolved in water is described by Henry's Law.
• A soft drink is a drink that usually contains water (often carbonated), a sweetener, and a natural artificial flavoring. 
• Henry's Law
  • In physical chemistry, Henry's law is a gas law that states that the amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid.
  • The proportionality factor is called Henry's law constant. It was formulated by the English chemist William Henry, who studied the topic in the early 19th century.
  • In his publication about the number of gases absorbed by water, he described the results of his experiments: