Research shows that impressions are formed very quickly and tend to have an impact on future outcomes. as such, it is really important to ensure you make a favorable first impression. this exercise will test your knowledge of the recommendations for making a killer first impression that were offered in the text.

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.