7.78 Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup contain- ing 252 g of water is heated in a microwave oven from 20.°C to 98°C, with radiation of wavelength 1.55x10²m. How many pho- tons are absorbed by the water in the soup?

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7.78 Enormous numbers of microwave photons are needed to
warm macroscopic samples of matter. A portion of soup contain-
ing 252 g of water is heated in a microwave oven from 20.°C to
98°C, with radiation of wavelength 1.55x10²m. How many pho-
tons are absorbed by the water in the soup?
Transcribed Image Text:7.78 Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup contain- ing 252 g of water is heated in a microwave oven from 20.°C to 98°C, with radiation of wavelength 1.55x10²m. How many pho- tons are absorbed by the water in the soup?
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