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How much heat is required to convert 75 g of ice from 0 C to liquid water at 90 C answer in cal?
Heat of fusion is absorbed Q = mLf = 75x 80 = 6000 cal just to melt the ice Heat is absorbed to change temp Q = mC(delta)T = 75 x 1 x (90 - 0) = 6750 cal Total heat = 6000 + 6750 = 12750 calories
How do you convert pressure units from pascals to joules?
To convert pressure units from pascals to joules, you can use the formula: 1 Pascal 1 Joule per cubic meter. This means that the pressure in pascals is equivalent to the energy density in joules per cubic meter.
What is the unit of measurement for heat?
First scientists used calorie as the unit of heat energy. One calorie is the amount of heat required to raise the temperature of one gram of water through one degree celcius. So 1000 cal is taken as kilo calorie. Even now a days we use such units in case of biological energy. Later scientists have found that heat is also a kind of energy which is closely related to mechanical energy as 1 cal = 4.18 joule So k cal requires 4180 joule of energy. This is what we call mechanical equivalent of heat energy. So at present stage we use only joule as the unit of heat energy. Especially in chemistry they use kilojoule/mole etc.
How is the Joule-Thomson effect calculated in thermodynamics?
The Joule-Thomson effect is calculated in thermodynamics by using the Joule-Thomson coefficient, which is the rate of change of temperature with pressure at constant enthalpy. This coefficient is determined by taking the partial derivative of temperature with respect to pressure at constant enthalpy. The formula for the Joule-Thomson coefficient is given by (T/P)H, where is the Joule-Thomson coefficient, T is temperature, P is pressure, and H is enthalpy.
Which of the following units would be used in energy thermodynamics?
Units such as joules (J) and calories (cal) are commonly used in energy thermodynamics to quantify energy. Other units like kilowatt-hours (kWh) and electronvolts (eV) may also be used depending on the situation.
What is the SI unit of food energy?
kilojoule joule k Cal Cal
If 1.000 cal 4.184 Joule how many Joules are in 41.841 cal?
To convert calories to Joules, you can use the conversion factor of 1 calorie = 4.184 Joules. Therefore, to find how many Joules are in 41.841 calories, you multiply 41.841 cal by 4.184 J/cal. This results in approximately 175.0 Joules.
How do you convert liters to joule?
There is no connection. Litre is volume, joule is a unit of energy.
How many joule are in 341 calories?
1,428 joules.
Which represents more energy a joule or a calorie?
A calorie is greater - it is equal to about 4.2 joules.
How many calories are in a Kilojoule?
1 Joule = 0.2390 cal (calorie) or 4.18 J=1 cal
How do you convert kilojoules into calories?
Depends on the type of calorie you're asking about. A "small calorie" which uses the symbol 'cal' is equivalent to about 4.18 Joules. A "large calorie" which uses the symbol 'Cal' is equivalent to about 4.18 Kilo Joules.
What is the unit used to measure chemical energy?
The unit used for ANY type of energy is the joule.
When was Cal Clutterbuck born?
Cal Clutterbuck was born on 1987-11-18.
How do you convert joule to kilowatt-hour?
Joules x 0.000000278 = kW/h
How many pounds are in a joule?
There are 0.7376 foot-pounds of force in a joule.
What are the SI units for heat?
The SI unit for heat is the joule (J). Additionally, the calorie (cal) is a commonly used non-SI unit for heat, where 1 calorie is equivalent to 4.184 joules.
