Chemistry, 14.09.2019 00:30, skyrileycasting

An incandescent light bulb emits some heat to a room through radiation. approximate the light bulb as a sphere with radius 2.1 cm and having a surface temperature of 97 °c when turned on. a. what is the rate of heat transfer to the room with tsur 24 °c? the emissivity, e, of glass is 0.93. b. if the light bulb is a 25w light bulb, what fraction of the power going to the light bulb is used inefficiently to produce heat?

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An incandescent light bulb emits some heat to a room through radiation. approximate the light bulb a...