Without performing any calculations, determine whether the entropy of the system increases or decreases in the photosynthesis of glucose: 6 CO2(g) + 6 H2O(ℓ) → C6H12O6(s) + 6 O2(g) 1. The entropy does not change. 2. decreases 3. increases 4. Unable to determine

2. Decreases

Explanation:

From the combined concept of entropy and the second law of thermodynamics, it can be concluded that during the positive change in entropy, the degree of randomness of a system increases.

But in case of photosynthesis, we see a negative entropy change because in the process of photosynthesis plants take disordered things as from the atmosphere and water from soil and finally make a highly ordered molecule Glucose, which is further used as a food product and source of energy by the plants. Thus it is clear that degree of randomness in decreasing in the process of photosynthesis and it is a negative change in entropy.

a sequence is a function whose domain is the set of natural numbers.

natural numbers are all the negative and positive integers

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.