The uncertainty analysis report should also include an error equation or model for each measured. quantity. The error equation or model should provide an algebraic expression that defines the. total error in the value of the quantity in terms of all relevant measurement process errors. In the.
There are different methods used to measure surface area and each method can yield different results. Most methods are based on the isothermal adsorption of nitrogen. Either a single point or multipoint method is used to calculate the surface area.he total to determine the method used to determine surface area, Table 1, showed that six of the respondents used a single point surface area of a catalyst can be measured by either a multipoint or single point technique.
Data is for the 50 states and the District of Columbia. What percent of your state do you think is water covered? Which state has the highest percentage of water area? Is the West really drier than the rest of the country? The table below shows the total land area and water area of each state. These water area data represent the sum of inland and coastal water and the Great Lakes. The source of this data is the U.S. Census Bureau, Geography: State Area Measurements, 2010. Land area and water area of each state.