A process column is a vertical cylinder in which a reaction takes place. The reaction is commonly one of filtering or selection, as measured by ionic charge; or molecular size and so on. Often an ion-exchange resin is used as the process material.
A particular type of process column is the fractionating column, beloved of the petrochemical industry. These are tens of metres high, and rely on the fact that as the pressure reduces up the column, the boiling point of the (liquid) will change. Thus the high b.p material comes off lower down, and lower b.p. come off at higher levels.
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7.848 '7' is in the UNITS column Decimal point '8' is in the TENTHS column '4' is in the HUNDREDTHS column '8' is in the THOUSANDTHS Column .
Well there will be 1 nine for all the 9s in the units column (9, 19, 29 etc.), and 1 nine for all the numbers with 9 in the tens column (90, 91, 92 etc.). So the answer is 20.
true
The tenths column is the first column after the decimal point, so it is 2.
The 5 is in the tenths column.