Physics/FOG

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Question
Sir, I am making a project on corrosion test in which i want to test the specimen under the effect of fog.  For which i have choosen NaCl, failed to form fog. Please help me

Answer
NaCl is a solid unless the temperature and will not form a gas until,the temperature is extremely high. NaCl is a completely wrong choice here. Water, on the other hand can form a fog at even room temperature. Fog in this context is made up of minute water droplets large enough to scatter light as it passes through it but small enough to remain suspended in air.

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James J. Kovalcin

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I am teaching or have taught AP physics B and C [calculus based mechanics & electricity and magnetism] as well as Lab Physics for college bound students. I have a BS in Physics from the University of Pittsburgh and a Master of Arts in Teaching from same. I have been teaching physics for 34 years. I am constantly updating my skills and have a particular interest in modern physics topics.

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