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A cup of chicken soup (500.0 g) is heated from 20ºC to 98ºC in a microwave oven that operates at wavelength = 1.55 x 10–2 m. How many moles of photons are absorbed by the soup? Assume that the specific heat capacity of chicken soup is equal to that of water.

  • Chemistry - ,

    q = mass water x specific heat water x delta T = ?? Joules.

    E = hc/wavelength.
    Substitute h, c, and wavelength to calculate E (in joules/photon)

    Convert to # photons, then divide by 6.022 x 10^23 to convert # photons to moles photons.

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