How many joules are in a kilogram of coal?Joules:A joule (J) is defined as the standard unit for energy alongside the calories (cal). And energy is defined as the capacity of any individual to do work. So we can conclude that we spend or exchange energy in order to do an activity ...
That's how many joules (the standard measurement of energy) you'd get from a kilogram of mass. In theory, if you could turn about seven billion hydrogen atoms completely to energy, you'd get about one joule (that's about as much energy as a 10-watt lightbulb consumes in a tenth of...
The specific heat of iron is 0.473 J/(gC) How many joules would it take to raise the temperature of a 3-kilogram block of iron by 50 degrees Celsius? The heat of vaporization of water is 540 cal/g. How much heat is needed t...
it may be quoted in joules / gram degrees C, calories / gram degrees C or joules / mol degrees C. A calorie is an alternate unit of energy (1 calorie = 4.184 joules), grams are 1/1000 of a kilogram, and a mole (shortened to mol) is a unit used in chemistry. As long as you ...
Gravitational potential (Jkg-1) = work done per unit mass to move a small object from infinity to that point (V=W/m). What are the units of gravitational potential? The units for gravitational potential would beJoules per kilogram.
One BTU is equal to 1,055 joules, or 252 gram-calories or 0.252 food calories. Presumably, a horse producing 1 horsepower would burn 641 Calories in one hour if it were 100 percent efficient. Some countries use a similar but distinct unit of power measurement known as the metric horsepower...
A more useful quantity in chemistry, physics and engineering isspecific heat capacity C, measured in units of heat per unit mass. Specific heat capacity units are usually joules per gram-kelvin, or J/g⋅K, even though the kilogram (kg) is the SI unit of mass. One reason specific heat...
where **_Q_** is the heat energy transferred (in joules), **_m_** is the mass of the liquid being heated (in kilograms), **_c_** is the specific heat capacity of the liquid (joule per kilogram degrees Celsius), and **_ΔT_** is the change in temperature of the liquid (deg...
Every material has a different specific heat capacity, which is simply the amount of energy you have to put in to raise the temperature of one gram of the material by one degree centigrade. You need to add 4.2 joules of energy to raise the temperature of 1 gram of water by 1°C, so...
Joules (J) is the SI unit of energy. It is defined as the amount of energy required to move an object of one kilogram at a speed of one meter per second. It is also equal to the work done when a force of one Newton is applied to an object and moved one meter in the direction...