100000 J represents the greatest amount of energy compared to 1000 cal, 500 Cal, and 100 kcal. 1 Cal = 1000 cal = 1 kcal = 4184 J. Therefore, 100000 J is equivalent to about 23.9 kcal.
A dietetic calorie is equal to one kcal (1000 calories). The unit is Cal as opposed to cal
1 kCal = 1000 Cal or I Cal = 1/1000 kCal
The difference between kcal and cal is 1000 cal = 1 kcal. However, we usually count food calories with kcal, and use kcal and cal interchangeably. Therefore, 9 kcal [Food Calories] = 9 cal. So, to the point: If there are 9 kcal in 1 g of fat, there are 9000 kcal in 1 kg of fat (1 kg = 1000 g).
1 kcal = 1000 cal. 1 cal = 4.18 J
To convert 6.5 kilocalories to joules, you multiply by 4184 since 1 kilocalorie is equal to 4184 joules. Therefore, 6.5 kcal is equal to 6.5 x 4184 = 27,164 joules.
"cal." or "kcal."
Joules (J) or kilocalories (cal) (kcal in Europe)
E = mass x sp ht x Δ°t (Finding Energy)where E (Energy) or Q (Quantity of Heat), mass (g), sp ht (aka specific heat, J/g°C*[typical] or cal/g°C or kcal/g°C), and Δ°t (temperature change). Finding Temperature ChangeDivide energy by mass multiplied by specific heat. Δ°t = Energy-- Mass * sp htIn order to find the final temperature (if problem is asking for this), add or subtract the original temperature and the new temperature together.Tf = original temperature +/- new temperatureIf energy is added, the temperatures will be added together; if energy is removed, the temperatures will be subtracted.Finding MassDivide energy by specific heat multiplied by temperature change. Mass = Energy------- sp ht * Δ°tFinding Specific HeatDivide energy by mass multiplied by temperature change. Sp ht = Energy------- Mass * Δ°tConverting Form of Energy (joules, kcal, and cal)Sometimes a problem will have E be shown in cal/g°C or kcal/g°C but will be asking for Joules or even vice versa. This means a conversion has to take place. Cal --> Joules and Joules --> cal-Calories (Cal) --> Joules (J)Multiply # cal by 4.184 Joules (J).Conversion Factor# cal x 4.184 J = Joules---------- 1 cal1 cal = 4.184 Joules-Joules (J) --> Calories (Cal)Divide # Joules (J) by 4.184Conversion Factor# J x 1 cal = cal--- 4.184 J1 Joule = 0.239005736 calKcal --> Joules (J) and Joules (J) --> Kcal-Joules --> kcal (Joules --> cal --> kcal)Divide # J by # kcal multiplied by 103Conversion Factor# Joules x 1 cal - * - 1kcal = kcal---------- 4.184J -- 103 cal1 kcal = 4,184 Joules 1 Joule = 0.000239005736 kcal-Kcal --> Joules (J) (Kcal --> cal --> Joules)Multiply # kcal by 103 cal by 4.184JConversion Factor# kcal * 103 cal * 4.184J = Joules (J)----------- 1 kcal --- 1 calAnother relationship that is good to understand: 1 kcal = 1000 (103) cal 1 cal = 0.001 (10-3) kcal
No, to convert from cal. to joules 1 cal. = 4.18400 joules , then 1KCal = (4.18400 *10^-3) joules so 3.25 kcal doesn't equal 3.25 Joules
675 kwh = 580,395,537 Cal = 580,296 kcal Source: http://www.convertworld.com/en/energy/kWh.html I think the kilocalorie (kcal) is the "calorie" that nutritionists use.
To convert the energy released from kilojoules to kilocalories, we need to use the conversion factor that 1 kcal is equal to 4.184 kJ. First, convert 9560 kJ to kcal: 9560 kJ x (1 kcal / 4.184 kJ) = 2282.3 kcal So, when 100.0g of gasoline undergoes combustion, 2282.3 kcal of energy are released.