Question

two bottles of soda were sitting on a porch on a hot day. the two bottles were identical, except that one bottle was made of brown glass and one bottle was made of clear glass. this table shows how the temperature of each bottle changed over 25 minutes.

bottle	initial temperature (°c)	final temperature (°c)
clear bottle	20	24

during this time, thermal energy was transferred from ______ to ______.

options:

• each bottle . . . the surroundings
• the surroundings . . . each bottle

Explanation:

Thermal energy transfers from higher - temperature to lower - temperature regions. The day is hot, so the surroundings (air, etc.) have a higher temperature than the initial 20°C of the bottles. The bottles' temperatures increased (brown to 28°C, clear to 24°C), meaning energy was transferred from the hotter surroundings to the cooler bottles.

Answer:

the surroundings... each bottle