One of the wonderful things about the metric system is the use of prefixes to move decimal points around to cover a huge range of values. So, for example, if one had 0.000000000001 Joules and one had 1,000,000 Joules, those two values could be expressed as 1 picoJoules and one MegaJoules respectively. So, what does "kilo" stand for and how does that answer your question?
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 Joule is equal to 0.001 Kilojoules.
kJ for kilojoules and J for joules.
To melt 25g of ice at 0 degrees Celsius, you need 334 J/g of energy (latent heat of fusion of ice). To convert this to kilojoules: 334 J/g * 25g = 8350 J = 8.35 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.
3.707
170 calories = 0.71128 kilojoules
To convert joules to kilojoules, divide by 1000. Therefore, 3923.7552 J is equal to 3.9238 kJ.
4.5 kJ = 4500 J
The Gibbs free energy in a chemical reaction is typically expressed in kilojoules (kJ).
i think about 5000 kilojoules
1 Joule = 0.2390 cal (calorie) or 4.18 J=1 cal