- What is the relation between joules and calories?
- How many joules are in a mole?
- How many joules are in a Watt?
- Which quantity is equal to 50 kJ?
- What do you mean by 1 Joule?
- How many volts are in a Joule?
- How many joules are in a Kilojoule?
- Is kJ and J the same?
- How many kcal should I burn a day?
- How much energy is a kJ?
- How do you convert joules to kilojoules per mole?
- How many joules are in a kg?
- What is largest unit of energy?
- What is 200 joules in KG?
- How many joules are in 1 kg of coal?
- How do you convert MJ to kJ?
- Which is bigger calorie or joule?
What is the relation between joules and calories?
The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius.
Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that one calorie is equal to approximately 4.2 joules..
How many joules are in a mole?
Since 1 mole = 6.02214076×1023 particles (atoms, molecules, ions etc.), 1 joule per mole is equal to 1 joule divided by 6.02214179×1023 particles, or (6.022×10^23 particles/mole), 1.66054×10−24 joule per particle.
How many joules are in a Watt?
1 jouleThe most common unit is the watt (W), defined as 1 joule (J) of energy per second. A 40 W light bulb, then, uses 40 J of electrical energy every second to stay lit.
Which quantity is equal to 50 kJ?
Convert 50 Kilojoules to JouleskJJ50.0050,00050.0150,01050.0250,02050.0350,03096 more rows
What do you mean by 1 Joule?
Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. … In electrical terms, the joule equals one watt-second—i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.
How many volts are in a Joule?
1 voltWhere: voltage is in Volts, J is the work or energy in Joules and C is the charge in Coulombs. Thus if J = 1 joule, C = 1 coulomb, then V will equal 1 volt.
How many joules are in a Kilojoule?
1000 JKilojoules to joules conversion tableEnergy (kJ)Energy (J)1 kJ1000 J2 kJ2000 J3 kJ3000 J4 kJ4000 J18 more rows
Is kJ and J the same?
Kilojoules to Joules Conversion 1 Kilojoule (kJ) is equal to 1000 joules (J). … For example, to convert 20 kJ to J, multiply 20 by 1000, that makes 20 kJ is 20000 J.
How many kcal should I burn a day?
Because 3,500 calories equals about 1 pound (0.45 kilogram) of fat, it’s estimated that you need to burn about 3,500 calories to lose 1 pound. So, in general, if you cut about 500 to 1,000 calories a day from your typical diet, you’d lose about 1 to 2 pounds a week.
How much energy is a kJ?
Energy as kilojoules A kilojoule is a unit of measure of energy, in the same way that kilometres measure distance. Food energy used to be measured in Calories (Cal) and some countries still use those units. The conversions are as follows: 1 kJ = 0.2 Cal.
How do you convert joules to kilojoules per mole?
The prefix “kilo” means 1,000, so one kJ = 1,000 J. As the energies associated with a single molecule or atom are quite small, we often find it easier to discuss the energy found in one mole of the substance, hence “per mole”. To get the energy for one molecule, divide kJ/mol by Avogadro’s number, 6.022 x 1023.
How many joules are in a kg?
89,875,517,873,681,764 joulesOne kilogram (kg) of mass is equivalent to exactly 89,875,517,873,681,764 joules (according to E=mc2 with m = 1 kg and speed of light c = 299,792,458 m/s).
What is largest unit of energy?
JouleAnswer and Explanation: In the SI unit system, Joule (J) is considered as the largest unit of energy.
What is 200 joules in KG?
Convert 200 Joules to Kilogram-force Meter200 Joules (j)20.394 Kilogram-force Meter (kgfm)1 j = 0.101972 kgfm1 kgfm = 9.807 j
How many joules are in 1 kg of coal?
29,307,600 joulesOne kilogram of coal contains 29,307,600 joules of energy.
How do you convert MJ to kJ?
kJ↔MJ 1 MJ = 1000 kJ. kJ↔mJ 1 kJ = 1000000 mJ.
Which is bigger calorie or joule?
The unit of energy in the International System of Units is the joule. One small calorie is approximately 4.2 joules (so one large calorie is about 4.2 kilojoules).