Chemistry 102: Thermochemistry, Parts 1 and 2 (Stock Number: 25006VHS) Part 1 relates bond energy to molecular structure and shows how to use bond energies to calculate heats of reaction. Part 2 defines standard state and enthalpy of formation, and shows how to use enthalpies of formation to calculate H. Media Type: VHS Price: $60 Length: 29 min In stock items ship in 48 hours. Click to Purchase Now from PSU Media Sales! Contact Information: Penn State Media Sales Address: 237 Outreach Building University Park PA 16802-3899 Website: http://mediasales.psu.edu Email: MediaSales@outreach.psu.edu Phone: 1-800-770-2111 Fax: 814-865-3172 iSOAR developed by Jeff Luck/OIS