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Convertir J a cal

Proporcione los valores a continuación para convertir julios [J] en calorías (th) [cal (th)], o viceversa .

Joule

Definición: Un julio (símbolo: J) es una unidad derivada de energía en el Sistema Internacional de Unidades (SI). Se define como la energía transferida a un objeto cuando se le aplica una fuerza de un newton en la dirección de su movimiento a lo largo de una distancia de un metro. También se define como la energía disipada en forma de calor cuando una corriente eléctrica de 1 amperio pasa a través de una resistencia de un ohmio en el transcurso de un segundo. Tiene una serie de representaciones tanto en unidades base SI como en otras unidades SI tales que:

J = kg·m ² /s ² = N·m = Pa·m ³ = W·s = C·V

Historia/origen: La unidad, joule, lleva el nombre de James Prescott Joule, un físico y matemático inglés que ayudó a desarrollar la escala Kelvin. También descubrió la relación entre el calor y el trabajo mecánico, lo que condujo a la ley de conservación de la energía y, posteriormente, a la primera ley de la termodinámica.

Uso actual: como unidad derivada del SI, el joule se usa en una variedad de contextos científicos. Los ejemplos prácticos de medición de energía usando joules incluyen la energía requerida para levantar objetos, la energía liberada cuando los objetos caen, el calor requerido para elevar la temperatura y la energía cinética de los objetos en movimiento.

One of the dimensional representations of a joule is the N·m (Newton-meter), which is equivalent to the SI unit for torque. These units however, are different, and should be considered as such. Even though the joule is algebraically equal to the N·m, the N·m should not be used to represent the joule whenever possible, to avoid confusion with torque.

calorie

Definition: A calorie (symbol: cal) is a unit of energy defined as the amount of energy required to increase the temperature of one gram of water by one °C. This is referred to as the small calorie or the gram calorie, and is equal to 4.1868 joules, the SI (International System of Units) unit of energy.

A large calorie (symbol: Cal), also known as a kilogram calorie (symbol: Cal), is technically a kilocalorie (symbol: kcal), the equivalent of 1000 small calories, but is also sometimes referred to as simply "Calorie." Large calories are usually used for labeling foods, and as such, is known as the food calorie.

History/origin: The term calorie comes from the Latin word "calor," which means heat. It was first defined as a unit of heat energy in 1824 by Nicolas Clement and appeared in French and English dictionaries between 1841 and 1867. The large calorie was introduced to the American public later, in 1887, by Wilbur Olin Atwater.

Current use: Although the calorie can be used with SI, since the official adoption of SI in 1960, the calorie is considered obsolete. Despite this, the large calorie is still widely used as a unit of food energy, alongside, or in place of the SI unit of food energy, the kilojoule. The use of a capital "C" in Calorie is intended to denote the use of kilocalories rather than calories denoting a single calorie. This is not often understood however, resulting in some confusion when foods are only labeled as Calories rather than kilocalories.

Calories are also used within scientific contexts, such as chemistry. In these contexts, the term being referenced is most often the small calorie, though measurements are often reported in kilocalories.

Joule to Calorie (th) Conversion Table

Joule [J]	Calorie (th) [cal (th)]
0.01 J	0.0023900574 calorias (th)
0,1J	0.0239005736 calorias (th)
1J	0.2390057361 calorias (th)
2J	0.4780114723 calorias (th)
3J	0.7170172084 calorias (th)
5J	1.1950286807 cal (th)
10J	2.3900573614 calorias (th)
20J	4.7801147228 calorias (th)
50J	11.9502868069 cal (th)
100J	23.9005736138 caloría (th)
1000J	239.0057361377 cal (jueves)