Essays on Vapors

Abstract

COPD is an illness that primarily affects the respiratory system. It is a treatable and preventable illness that is characterized by persistent and progressive limitation of airflow into the lungs. in its severity, COPD is a condition that requires frequent hospitalizations due to exacerbations that occur once there is a trigger effect or the patient is exposed to an allergen. Within the US, COPD is regarded as the third leading cause of death and there is evidence to show that up to 11 million persons have been diagnosed with COPD (Global initiative for Chronic Obstructive Lung Disease Inc, 2015). ...

The air near the surface will usually become warmer throughout the day. This is one of the main reasons why it is unstable. Then at night, the air that is close to the surface will begin to cool. This is going to form a temperature inversion or a stable atmosphere.2. Inversions aloft are sometimes called “capping inversions” or “lids”. Why?

This is because it is like putting a lid on the atmosphere.

3. You are flying at 4,000 feet AGL over a city during the day. There are no clouds present. As you descend to land at a nearby airport, you notice that, although visibility was very good at 4, ...

4 – Nitroaniline

INTRODUCTION

4-Nitroaniline is an organic nitro aromatic compound. It is a yellow powder with a pungent odor and is highly soluble in hot water, methanol, ethanol, acetone etc (Lide 1994). Its chemical formula is C6H6N2O2. It has the following chemical structure: (Courtesy: PubChem 2016) It is also known as P-Amino nitrobenzene, P-Nitraniline or Benzene amine (PubChem 2016). It explodes on decomposition to emit toxic nitrogen oxides (Lewis 1996). 4-Nitroaniline is used in the manufacture of textile dyes such as the red azo dyes. It is also used in preparation of antioxidants, fuel additives, pesticides, pharmaceuticals and poultry medicines ( ...