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What has a density of 2.65?

Suppose that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 265 mL?

  • here is the full question: Suppose that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 265 mL of coffee from 25.0 ^ C to 62.0^ C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 J/(g* K), as water over this temperature range. i have been working on this for awhile now can anyone help me??

  • Answer:

    1] Calculate the energy required, from Q = MCDeltaT from the information in 265 mL of coffee from 25.0 ^ C to 62.0^ C 2] Use E = h x frequency = h x c /wavelength to find the energy of a single photon 3] Divide 1]/2] to get the number of photons

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1] Calculate the energy required, from Q = MCDeltaT from the information in 265 mL of coffee from 25.0 ^ C to 62.0^ C 2] Use E = h x frequency = h x c /wavelength to find the energy of a single photon 3] Divide 1]/2] to get the number of photons

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