Question: A marble slab with k = 2W / (m ( oC), ( = 2500 kg / m3, and c = 800 W ( s /

A marble slab with k = 2W / (m ( oC), ( = 2500 kg / m3, and c = 800 W ( s / (kg ( oC) is 2 cm thick and at an initial uniform temperature of Ti = 200 oC. The left surface is suddenly lowered to 0 oC and is maintained at that temperature while the other surface is kept insulated. Determine the temperature in the slab for 40 s. Use β = 2/3 and a time step of 8 s?

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