An advantage of the S.I, (Systéme International d' Unités) Unit system is that if you use the basic units you don't have to worry about conversion factors.
For the seven "fundamental dimensions', the S.I. basic units are:
Length → meter, m
time → second, s
mass → kilogram, kg
temperature → kelvin, K
substance → kilomol, kmol
electric current → ampere, Å
luminous intensity → candel, cd
i.e.; Force = mass∙acceleration → 1 newton = 1 kg∙ m/s
Work = Force∙lenght → 1 joule = 1 N∙m/s2
heat = mass∙(sp.heat cap.)∙(temperature difference) → 1 joule = kg∙[J/(kg∙K)]∙K
So if you are to use this last relation, you have to use joule. If not you have to be
careful in noticing that the result will be in kilojoules, kJ.
To convert joules to kilojoules, divide the number of joules by 1000. For example, to convert 5000 joules to kilojoules, you would divide 5000 by 1000 to get 5 kilojoules.
To convert from kilojoules to joules you have divide by 1000. meaning 1 kilo joule is equal to 1000 joules.
To convert joules to kilojoules, divide the number of joules by 1000. For example, 1 kilojoule = 1000 joules, 5000 joules = 5 kilojoules.
There are 1000 joules in 1 kilojoules. to convert kilojoules to joules you need to multiply by 1000, this means moving the decimal point three places to the right filling any gaps with zeros. 1.5 kJ becomes 1500 J.
1 Kilojoule is equal to 1000 joules. So, 980 kilojoules x 1000 joules per kilojoule = 980000 joules.
Kilo is the prefix for one thousand. So, 3,872.8 joules is 3.8728 kilojoules.
To convert joules to kilojoules, divide by 1000. Therefore, 3923.7552 J is equal to 3.9238 kJ.
3.28
To convert 2.35 kilojoules of heat to degrees Celsius, you need to know the specific heat capacity of the substance being heated. Once you have this value, you can use the formula: Heat energy (in joules) = mass * specific heat capacity * change in temperature. By rearranging the formula, you can calculate the change in temperature in degrees Celsius.
There are 56,000 joules in 56 kilojoules. This is because there are 1,000 joules in a kilojoule.
To convert from kilojoules per mole to joules per gram, you need the molar mass of the substance. Once you have the molar mass, you can convert as follows: 1 kJ/mol = 1000 J/mol 40.79 kJ/mol = 40.79 * 1000 J/mol = 40790 J/mol Then, divide by the molar mass in grams/mol to get joules per gram.
Lets say, for example the enthalpy is equal to 1200 joules/gram. You take 1200 joules/gram * (# of grams)/one mole [now you can cancel grams and it is now joules/mole.] Then convert the answer to kilojoules by dividing by 1000.