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How many photons are needed to raise the temperature of a cup of water(250g) from 25 to 75 Celsius degrees?

imrubd

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Posts: 5

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11 years ago

How many photons are needed to raise the temperature of a cup of water(250g) from 25 to 75 Celsius degrees?

Water absorbs microwave radiation of wavelength of 3mm. How many photons are needed to raise the temperature from 25 to 75 celsius degrees in a microwave oven, using this radiation? The specific heat of water: 4.184j/g celsius.

The correct answer is: 7.9x10^26 photons.
Thank you for your help!

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imranrocks

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#1

11 years ago

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