SUMMARY
The heat of atomization for methane is 360 kJ/mol and for ethane is 620 kJ/mol. The longest wavelength of light capable of breaking the C-C bond in ethane can be calculated using the equation E = hν = hc/λ, where h is Planck's constant (6.62 x 10^-34 J s) and Avogadro's number is 6.02 x 10^23. The energy required to break one C-C bond is determined to be 90 kJ/mol, derived from the total heat of atomization of ethane and the known bond energies of C-H bonds.
PREREQUISITES
- Understanding of bond energies, specifically C-C and C-H bonds
- Familiarity with the concept of heat of atomization
- Knowledge of Planck's equation for energy calculations
- Basic understanding of Avogadro's number and its applications
NEXT STEPS
- Research the calculation of bond energies using experimental data
- Learn about the implications of bond energies in chemical reactions
- Study the relationship between wavelength and energy in photochemistry
- Explore advanced topics in thermochemistry related to heat of formation
USEFUL FOR
Chemistry students, educators, and professionals interested in thermodynamics and molecular bonding, particularly those focusing on organic compounds like methane and ethane.