Please help answer question 4 and 5 ## Model 2: Alkanes and Their Properties### Table InformationThe table lists different alkanes along with their molecular weight, boiling point, and state at room temperature:- **Methane (CH₄)** - Molecular Weight: 16.00 g/mol - Boiling Point: -162°C - State: Gas- **Ethane (C₂H₆)** - Boiling Point: -89°C - State: Gas- **Propane (C₃H₈)** - Boiling Point: -42°C - State: Gas- **Butane (C₄H₁₀)** - Boiling Point: 0°C - State: Gas- **Pentane (C₅H₁₂)** - Boiling Point: 36°C - State: Liquid- **Hexane (C₆H₁₄)** - Boiling Point: 69°C - State: Liquid### Questions and Analysis1. **Describe the trend in boiling point above.** - The boiling point increases as the molecular weight and chain length of the alkanes increase.2. **Is there a relationship between the boiling point and the molecular weight of the compounds?** - Yes, as the molecular weight increases, the boiling point also increases.3. **What do you attribute the trend we see above as in what does this trend really reflect? Is it the molar mass that is important or something else to this trend?** - The trend reflects increasing London dispersion forces as the molecular weight and chain length increase, leading to higher boiling points.4. **Predict the physical state (solid, liquid, or gas) of the alkane icosane (C₂₀H₄₂) at room temperature. Explain your answer.** - Icosane would likely be a solid at room temperature due to its larger molecular weight and stronger intermolecular forces compared to smaller alkanes.5. **Both neopentane and n-pentane have a C₅H₁₂ formula.** - **Structures and Properties:** - **n-Pentane:** - Molar Mass: 72.15 g/mol - Boiling Point: 36.1°C -

Eicosane has the molecular formula of C20H42 and it has a molecular weight of 282.5475 g/mol. Alkanes having 18 or more carbon atoms are solid at 298K. Hence Eicosane is a solid compound at room temperature. It has a boiling point of 3430C All the answers relevant to 5 question have been answered in this section. Neopentane and n-pentane, both have the empirical formula C5H12. Neopentane is almost spherical, with a small surface area for intermolecular interactions. n-pentane has an extended conformation that enables it to come into close contact with other n-pentane molecules. As a result, the boiling point of neopentane (9.5°C) is more than 25°C lower than the boiling point of n-pentane (36.1°C). Linear n-pentane molecules have a larger surface area and stronger intermolecular forces than spherical neopentane molecules. Conclusion: The larger the surface area, the higher the boiling point.