Calories per gram

For fuels it is quite usual to employ kilocalories per kilogram as a measure of calorific value while for foods the unit used is kilocalories per gram. This, however, is often abbreviated to Calories , so that a value for carbohydrates of 4-1 Calories per gram is 4100 calories per gram. 

The illustrative data presented in Table VII-3 indicate that the total surface energy may amount to a few tenths of a calorie per gram for particles on the order of 1 /xm in size. When the solid interface is destroyed, as by dissolving, the surface energy appears as an extra heat of solution, and with accurate calorimetry it is possible to measure the small difference between the heat of solution of coarse and of finely crystalline material. 

B.t.u. per pound per degree Calories per gram per degree Cubic feet per minute Cubic centimeters per second 472.0... 

To convert calories per gram-mole to British thermal units per... 

To convert calories per gram-kelvin to British thermal units per pound-degree Ranldne, multiply by 1.0 to convert calories per gram-mole-kelvin to British thermal units per pound-mole-degree Ranldne, multiply by 1.0. 

Heat evolved, in Idlogram-calories per gram formula weight, on solution in water at 18 C. Computed from data in Bichowsky and Rossini, Theimochemishy of Chemical Substances, Reinhold, New York, 1936. 

Those with a normal diet take in food in the forms of carbohydrates, fats and proteins. Because it has a low water content and produces so many ATP molecules, fat yields 9.3 Calories per gram while carbohydrates and proteins yield less than half as much (4.1 and 4.3 calorics per gi-am respectively). Thus, we get a huge number of calories from a small quantity of fat eaten. The average person in the United States has a diet with 50 percent of the calories in the form of carbohydrates, 35 percent in the form of fat and 15 percent in the form of protein. We need about 1 gram of protein per kilogram of body weight per day to replace body proteins that are broken down. A 70 kg person... 

It is debatable whether obesity is related to total calorie intake or composition of macronutrients. Of the three macronutrients (i.e., carbohydrate, protein, and fat), fat has received the most attention given its desirable texture and its ability to augment the flavor of other foods. Food high in fat promotes weight gain in comparison with the other macronutrients because fat is more energy-dense. When compared with carbohydrate and protein, more than twice as many calories per gram are contained in fat. In addition, fat is stored more easily by the body compared with protein and carbohydrate.23... 

Cp is expressed in calories per gram mole per degree Kelvin... 

We now wish to examine the heat capacity per unit mass to determine if it varies significantly with conversion. At the inlet conditions, the molal heat capacity of the gaseous feed will be equal to X(y CPi). Hence at / = 0, with Cp in units of calories per gram degree Kelvin and T in degrees Kelvin. 

Community awareness and emergency response (ACC Responsible Care) Calorie per gram... 

Processes having a reactive hazard with a heat of reaction of 100 calories per gram will be regulated under the NJ TCPA when the quantity of reactive hazard contained in the process equals or exceeds the threshold quantity calculated to result in a 2.3 psi overpressure wave endpoint at a distance of 100 meters or a lesser distance to the source boundary. 

Considerable heat will be used to melt and to vaporize the reaction products. Vaporization of a reaction product is commonly the limiting factor in determining the maximum flame temperature. For example, consider a beaker of water at 25°C. As the water is heated, at one atmosphere pressure, the temperature of the liquid rises rather quickly to a value of 100 c. To heat the water over this temperature range, a heat input of approximately 1 calorie per gram per degree rise in temperature is required. To raise 500 grams of water from 25° to 100°C will require... 

Heat of Decomposition. The heat evolved or absorbed in a particular decomposition process. Thus the heat of decomposition of A B + C is usually different from A ->-B + D. However, A->-E+F B+C has the same net heat effect as A ->-B + C. The heat of decomposition is generally expressed in kg calories per gram molecule or in calories per gram... 

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