Homework Help: More chemistry

Posted by Alex on Sunday, November 14, 2010 at 3:39pm.

Hey jiskha.

Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat that is transferred to other components of the food. Suppose that the microwave radiation has a wavelength of 12.7 cm. How many photons are required to heat 200. mL of coffee from 21°C to 63°C?

I have no clue where to start.

More chemistry - Mr. McHam, Sunday, November 14, 2010 at 6:53pm
You should have listened in class more so you would be prepared for this WebAssign
More chemistry - DrBob222, Sunday, November 14, 2010 at 9:48pm
See your later post.

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