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A glass observation window into a low pressure "cold Room" is the shape of a thuncated pyramid with square cross seclions. This is set in a wall made of an insulating material that is L=20cm thick. The 2 parallel surfaces of the glass are flush (even) with the wall surfaces inside \& outside the "Cold Room". The outside surface of the glass block (x=0) at 18c is 80cm80cm, and the inside surface temperabire (x=L) at 25c is 60cm60cm. Nole that 2a=80cm and 26=60cm. The sloping side surfaces of the glass are perfectly insulated. The thermal conductivity of the glass is 84W/mK. - a) Estimate the rate of heat thanfer. b) Would the tumperature profile for (0xL) be linear? Draw a rough sketch & discuss. A glass observation window into a low pressure "cold Room" is the shape of a thuncated pyramid with square cross seclions. This is set in a wall made of an insulating material that is L=20cm thick. The 2 parallel surfaces of the glass are flush (even) with the wall surfaces inside \& outside the "Cold Room". The outside surface of the glass block (x=0) at 18c is 80cm80cm, and the inside surface temperabire (x=L) at 25c is 60cm60cm. Nole that 2a=80cm and 26=60cm. The sloping side surfaces of the glass are perfectly insulated. The thermal conductivity of the glass is 84W/mK. - a) Estimate the rate of heat thanfer. b) Would the tumperature profile for (0xL) be linear? Draw a rough sketch & discuss