# 12. A 368 g sample of water absorbs infrared radiation at 1.06 × 104 nm from a carbon dioxide laser. Suppose all the absorbed radiation is converted to heat. Calculate the number of photons at this wavelength required to raise the temperature of the water by 5.00ºC.

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12. A 368 g sample of water absorbs infrared radiation at 1.06 × 104 nm from a carbon dioxide laser. Suppose all the absorbed radiation is converted to heat. Calculate the number of photons at this wavelength required to raise the temperature of the water by 5.00ºC.

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Step 1

Mass of water = 368g

Specific heat of water = 4.184 J/go ... help_outlineImage TranscriptioncloseThe q is calculated as follows, q-(mass) (At) (C) q-(368g) (5.00°C) (4.184 J/g°C) q= 7698.56 J The energy is calculated as follows, E hv C V= E hx c 3x10 m/s h 6.626x10 (Planck constant) -34 3x10 m/s E 6.626x10-34, 1.06x104 x109m E 1.8752x1020 J/photon fullscreen

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### General Chemistry 