Ileat is transferred by convection from water at 48 "C to a glass plate whose surface is exposed to water at 40 "C. The thermal conductivity of water is 0.6W/mK and the thermal conductivity of glass is 1.2 W/mK. The spectral gradient of temperature in the water at the water glass interface is 10“ K/m. The heat transfer coefficient in W/m’K is

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