Water is exposed to infrared radiation of wavelength 2.80 x 10^-4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons are required to raise the temperature of 2.00 g of water by 2.00 °C ? [CH2O = 4.184 J/g·°C] 2.35 x 10^20 photons 7.10 x 10^20 photons 2.35 x 10^22 photons 5.54 x 10^21 photons 7.10 x 10^22 photons
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00 g of water by 2.00 °C. We can use the formula Q = mcΔT, where m is the mass of the water, c is the specific heat capacity of water, and ΔT is the change in temperature. Q = (2.00 g)(4.184 J/g°C)(2.00 °C) = 16.736 J Show more…
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