YS16 Directions: Read and analyze the following scenario. Using what you've leamed about factors affecting chemical reaction answer the guide question in each item. 1. Corrosion damages buildings and monuments making it a serious environmental problem. It may be generally defined as deterioration of substances Basically, it is an electrochemical process. Rusting is the common term for corrosion of iron and its alloys such as steel. One of the factors which affects corrosion is temperature. Steel and other metals corrode at a faster rate at higher temperature than at lower temperature, Guide question: Which house with metal roofing will be corroded more in a shorter period of time, a house roof with no trees or a house roof shadowed by trees? Why? 2. American Astronauts died during the 1967 tragedy of Apollo 1. A flash fire occurred inside the command module that contained 100 percent oxygen. According to the firemen, the explosion could have been avoided if the space capsule contained air and not pure oxygen. The flames spread quickly through the cabin. The last transmission ended 17 seconds after the start of the fire. All telemetry information was lost shortly after that. Emergency responders were dispatched quickly to help. The crew most likely perished within the first 30 seconds of smoke inhalation or bums, Resuscitation efforts were futile. Guide Question: The atmosphere of air that we live in is only 21 percent oxygen. What do you think might happen in atmosphere of 100 percent oxygen if something catches fire?

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1. Corrosion damages buildings and monuments making it a serious environmental problem. It may be generally defined as deterioration of substances Basically, it is an electrochemical process. Rusting is the common term for corrosion of iron and its alloys such as steel. One of the factors which affects corrosion is temperature. Steel and other metals corrode at a faster rate at higher temperature than at lower temperature,

Guide question: Which house with metal roofing will be corroded more in a shorter period of time, a house roof with no trees or a house roof shadowed by trees? Why?

In a short amount of time, a metal house roof with no trees would deteriorate more than a metal house roof shaded by trees. The reason for this is that temperature is a factor that influences corrosion. A tree-shaded metal house roof can deflect hot breezes while directing and increasing the velocity of a cold wind, preventing corrosion in a short amount of time.

2. American Astronauts died during the 1967 tragedy of Apollo 1. A flash fire occurred inside the command module that contained 100 percent oxygen. According to the firemen, the explosion could have been avoided if the space capsule contained air and not pure oxygen. The flames spread quickly through the cabin. The last transmission ended 17 seconds after the start of the fire. All telemetry information was lost shortly after that. Emergency responders were dispatched quickly to help. The crew most likely perished within the first 30 seconds of smoke inhalation or bums, Resuscitation efforts were futile.

Guide Question: The atmosphere of air that we live in is only 21 percent oxygen. What do you think might happen in atmosphere of 100 percent oxygen if something catches fire?

A fire's ability to spread and expand is dependent on oxygen. I believe that if something caught fire in an atmosphere with 100% oxygen, the fire would be massive.

Hope it helps!