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(a)
To determine: If the entropy of the system is increasing or decreasing in the process of photodissociation of O 2 ( g ) .
Solution: The entropy of the system is increasing in the given process.
Explanation:
The process of photodissociation of oxygen gas involves the breaking of bonds which results in the increase in volume and vibrations in the system. Due to this, the randomness of the system increases which results in the increase in entropy of the system.
Conclusion:
The entropy of the system is increasing in the given process.
To determine: If the entropy of the system is increasing or decreasing in the process of photodissociation of
Solution: The entropy of the system is increasing in the given process.
Explanation:
The process of photodissociation of oxygen gas involves the breaking of bonds which results in the increase in volume and vibrations in the system. Due to this, the randomness of the system increases which results in the increase in entropy of the system.
Conclusion:
The entropy of the system is increasing in the given process.
(b)
To determine: If the entropy of system increasing or decreasing in the process of formation of ozone from oxygen molecules and oxygen atoms.
(c)
To determine: If the entropy of the system is increasing or decreasing in the process of diffusion of CFCs into the stratosphere.
(d)
To determine: If the entropy of the system is increasing or decreasing in the process of desalination of water by reverse osmosis.
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Chapter 5 Solutions
Chemistry the Central Science 13th Edition Custom for Lamar University
- 2. Use Hess's law to calculate the AH (in kJ) for: rxn CIF(g) + F2(g) → CIF 3 (1) using the following information: 2CIF(g) + O2(g) → Cl₂O(g) + OF 2(g) AH = 167.5 kJ ΔΗ 2F2 (g) + O2(g) → 2 OF 2(g) 2C1F3 (1) + 202(g) → Cl₂O(g) + 3 OF 2(g) о = = -43.5 kJ AH = 394.1kJarrow_forwardci Draw the major product(s) of the following reactions: (3 pts) CH3 HNO3/H2SO4 HNO3/ H2SO4 OCH3 (1 pts)arrow_forwardProvide the product for the reactionarrow_forward
- What is the net ionic equation for the reaction between tin(IV) sulfide and nitric acid?arrow_forwardThe combustion of 28.8 g of NH3 consumes exactly _____ g of O2. 4 NH3 + 7 O2 ----> 4 NO2 + 6 H2Oarrow_forwardWhat is the molecular formula of the bond-line structure shown below OH HO ○ C14H12O2 ○ C16H14O2 ○ C16H12O2 O C14H14O2arrow_forward
- Check all molecules that are acids on the list below. H2CO3 HC2H3O2 C6H5NH2 HNO3 NH3arrow_forwardFrom the given compound, choose the proton that best fits each given description. a CH2 CH 2 Cl b с CH2 F Most shielded: (Choose one) Least shielded: (Choose one) Highest chemical shift: (Choose one) Lowest chemical shift: (Choose one) ×arrow_forwardConsider this molecule: How many H atoms are in this molecule? How many different signals could be found in its 1H NMR spectrum? Note: A multiplet is considered one signal.arrow_forward
- For each of the given mass spectrum data, identify whether the compound contains chlorine, bromine, or neither. Compound m/z of M* peak m/z of M + 2 peak ratio of M+ : M + 2 peak Which element is present? A 122 no M + 2 peak not applicable (Choose one) B 78 80 3:1 (Choose one) C 227 229 1:1 (Choose one)arrow_forwardShow transformation from reactant to product, step by step. *see imagearrow_forwardCheck the box if the molecule contains the listed item. *See imagearrow_forward
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