Friday
December 19, 2014

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 21C to 63C?

I have no clue where to start.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry! - Hey jiskha. Microwave ovens emit microwave radiation that is ...
chemistry 121 - Microwave ovens use microwave radiation to heat food. The ...
chemistry 121 - Microwave ovens use microwave radiation to heat food. The ...
Chemistry - microwave ovens work by irradiating food with microwaves, which is ...
Chemistry - Microwaves are used to heat food in microwave ovens. The microwave ...
chemistry - Microwaves are used to heat food in microwave ovens. The microwave ...
college-- chemistry - I am having a problem with this problem from my homework. ...
chemistry - A microwave oven heats by radiating food with microwave radiation ...
chemistry - A microwave oven heats by radiating food with microwave radiation ...
CHEMISTRY - I don't even understand how this question works. How do I solve it? ...

Search
Members