Energy Release Calculator

Energy Release Calculator:

Enter the values of  mass of the substance, m_(kg),  specific heat capacity, C_p(J/kg°C) and change in temperature, T_(°C) to determine the value of Energy released, Q_(J).

Enter Mass:		kg
Enter Specific Heat Capacity:		J/kg°C
Enter Temperature:		°C
Result – Energy Released:		J

Energy Release Formula:

Energy release refers to the amount of energy transferred or emitted from a system as a result of a physical or chemical process, typically during heating, cooling, or phase changes. In thermodynamics, energy release is often associated with the transfer of heat (Q), which can be calculated based on the mass of the substance, its specific heat capacity, and the temperature change it undergoes.

The specific heat capacity, Cp, is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius (or Kelvin). The temperature change, T, is the difference between the final temperature and the initial temperature of the substance.

The energy release can vary significantly depending on the substance’s physical properties, such as its specific heat capacity, and the magnitude of the temperature change. Understanding the energy release is crucial in fields like thermodynamics, engineering, and environmental science.

Energy released, Q_(J) in Joules equals the mass of the substance, m_(kg) in kilograms multiplied by the specific heat capacity, C_p(J/kg°C) in Joules per kilograms degree Celsius of the substance, and then multiplied by the change in temperature, T_(°C) in degree Celsius.

Energy released, Q_(J) = m_(kg) * C_p(J/kg°C) *  T_(°C)

Q_(J) = energy released in Joules, J.

m_(kg) = mass in kilograms, kg.

C_p(J/kg°C) = specific heat capacity in Joules per kilograms degree Celsius, J/kg°C.

T_(°C) = temperature in degree Celsius,°C.

Energy Release Calculation:

1. A 0.5 kg sample of water is heated from 20°C to 80°C. The specific heat capacity of water is 4186 J/kg°C. Calculate the energy released by the water.

Given: m_(kg) = 0.5 kg, C_p(J/kg°C) = 4186 J/kg°C, T_(°C) = 80 – 20 = 60°C.

Energy released, Q_(J) = m_(kg) * C_p(J/kg°C) *  T_(°C) Q_(J) = 0.5 * 4186 * 60

Q_(J) = 125580J.

2. A 2 kg block of metal absorbs 3000 joules of energy. The specific heat capacity of the metal is 500 J/kg°C. Calculate the temperature change.

Given: m_(kg) = 2 kg, C_p(J/kg°C) = 500 J/kg°C, Q_(J) = 3000J.

Energy released, Q_(J) = m_(kg) * C_p(J/kg°C) *  T_(°C)

T_(°C) = Q_(J) / m_(kg) * C_p(J/kg°C)

T_(°C) = 3000 / 2 * 500

T_(°C) = 3°C.