chemistry chapter 3 vocab Flashcards
absolute zero
the zero point on the kelvin temp scale
accepted value
the quantity used by general agreement of the scientific community
accuracy
the closeness of a measurement to the true value of what is being measured
calorie
the quantity of heat needed to raise the temp of 1g of pure water 1 degree celsius
celsisus scale
the temp scale on which the freezing of water is 0 degrees celsius and boling point is 100 degrees celsius
conversion factor
a ratio of equivalent measurements used to convert a quantity from one unit to another
density
the ratio of the mass of an object to its volume
demensional analysis
a technique of problem solving that uses the units that are part of a measurement to help solve the problem
energy
the capacity for doning work or producing heat
experimental value
a quantitative value measured during an expirement
error
the difference between the accepted value and the expiremental value
gram
a metric unit equal to the mass of 1cm3 of water at 4 degrees celsisus
International System of Units (SI)
the revised version of the metric system adopted by the international agreement in 1960
joule
the SI unit of energy
4.184 equals one calorie
kelvin scale
the temp scale in which the freezing point of water is 273k and the boiling point is 373k; 0 k is absolute zero
