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This table is based upon a dog's Resting Energy Requirements or RER. The RER is the basic amount of energy that a dog would use in a day while remaining at rest. The formula to calculate RER for animals between 2 and 45 kg (5 - 99 pounds) is: RER in kcal/day = 30(body weight in kilograms) + 70. Any activity or variable other than rest will require an increase in energy (RER) and an increase in calories to meet the energy needs. Realize that these numbers are not a reflection of maintenance calories but of resting energy levels.
Units of Energy: Joules and Calories. Many times it is easiest to solve equations or problems by conducting dimensional analysis, which just means using the same units throughout an equation, seeing that both sides of an equation contain balanced units, and that the answer is cast in terms of units that you want.s an example, let's calculate the change in enthalpy H 298-1000 that results from heating quartz from 298 K to 1000 K, given the following heat capacity expansion coefficients: a = 104.35, b = 6.07E-3, c = 3.4E+4, d = -1070.