Soda Warming in a Room: How Long Does it Take?

[moonman239]

Homework Statement

Suppose a can of soda is sitting out in a room that has a temperature of 73 degrees. The temperature of the soda itself is 50 degrees. How long will it take for the soda to warm up to the temperature of the room?

The Attempt at a Solution

I know what I can do is convert temperature to average heat energy. But, I cannot answer the question because the physics book I am reading does not provide the formula. It talks about how the soda can will eventually warm up, but again...no formula.

 

[moonman239]

Oops. *dope-slap* I found it on Google. Question: Is it safe to assume that we are talking about a closed system?