Tuesday 22 November 2016

In many buildings the walls are constructed of gypsum plaster board or dry wall.

In many buildings the walls are constructed of gypsum plaster board or dry wall. Gypsum plaster board is used as fire walls in many attics in garden apartments and other structures. Explain why gypsum plaster is used as a heat barrier. Discuss how many joules are needed to raise the temperature of 1 kg of gypsum plaster by 1°C. How many joules are needed to raise 1 kg of wood (oak) to the same temperature? If identical fires from a chair are burning in identical rooms, except that one room is lined with wood (oak) and one room is lined with gypsum plaster, in which room would the walls tend to be hotter? Explain why. 200 words

No comments:

Post a Comment

One of the distinguishing features in the earlier films is the presence of video cameras and their low-resolution images that contrast with film images that seem more stable and permanent

  The goal of the project is to have you research a movie of your choice (cannot be a film shown in class whic...