Interpreting Data Equal amounts of iron, water, and sand, all at
the same initial temperature, were placed in an
oven and heated briefly. Use the data in Table 5-2 on
page 141 to match each final temperature with the
appropriate material: 31°C, 5°C, and 46°C. If you need
help, refer to Interpreting Data in the Skill Handbook.
144
Chapter 5 Energy

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.