<P> So, when the units mile and hour are cancelled out and the arithmetic is done, 10 miles per hour converts to 4.4704 meters per second . </P> <P> As a more complex example, the concentration of nitrogen oxides (i.e., NO x (\ displaystyle \ color (Blue) (\ ce (NO)) _ (x))) in the flue gas from an industrial furnace can be converted to a mass flow rate expressed in grams per hour (i.e., g / h) of NO x (\ displaystyle (\ ce (NO)) _ (x)) by using the following information as shown below: </P> <Dl> <Dt> NO concentration </Dt> <Dd> = 10 parts per million by volume = 10 ppmv = 10 volumes / 10 volumes </Dd> <Dt> NO molar mass </Dt> <Dd> = 46 kg / kmol = 46 g / mol </Dd> <Dt> Flow rate of flue gas </Dt> <Dd> = 20 cubic meters per minute = 20 m / min </Dd> <Dd> The flue gas exits the furnace at 0 ° C temperature and 101.325 kPa absolute pressure . </Dd> <Dd> The molar volume of a gas at 0 ° C temperature and 101.325 kPa is 22.414 m / kmol . </Dd> </Dl> <Dd> = 10 parts per million by volume = 10 ppmv = 10 volumes / 10 volumes </Dd>

What is the dimension of l/r