Describe the physical and chemical changes that take place during digestion
1 answer:
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This is an incomplete question, here is a complete question.
Consider the reaction between nitrogen and oxygen gas from dinitrogen monoxide.
Given: delta Hrxn= +163.2kJ
Calculate the entropy change in the surroundings when this reaction occurs at 25 degrees C.
Answer : The entropy change in the surroundings is, -547.6 J/K
Explanation :
Formula used to calculate the entropy change in the surroundings is:
where,
= entropy change in the surrounding
Q = heat energy
T = temperature =
Given:
Now put all the given values in the above formula, we get:
Therefore, the entropy change in the surroundings is, -547.6 J/K
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sodium ions in 2.11 mol of sodium carbonate.
The sodium carbonate, the inorganic substance with the formula, is also known as washing soda, soda ash, and soda crystals.
All of the forms are water-soluble, odourless, white salts that produce slightly alkaline solutions in water. In the past, it was recovered from the ashes of plants that were raised in soils high in salt.
The term "soda ash" originated to refer to sodium carbonate because the ashes of these sodium-rich plants were probably distinct from the wood ashes that were originally used to make potash. The Solvay technique is used to produce it in large amounts from limestone and sodium chloride.
Learn more about sodium carbonate
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