Acertain chemistry class is 1.00 microcentury (μcen) long. what is its length in minutes?

There are several scale to determine the time, weight, distance. The scale of each is large from the micro level to macro. In case of time the standard used lower value is second or micro second and larger value is hour. There are also some units which are easily expressed but contains a large number. Like in case of weight 1 tom is equivalent to 100 Kg or 100000 gm to make the data hand-able the ton unit is used. Similarly the micro-century is often used to express the length of a class in term of time. 1 micro-century is equivalent to 52 minutes. Thus the length of the chemistry class in terms of minutes will be 52.

i think slash and

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.