What energy will be released during the combustion of 5 g of powder charge?

To find out the amount of energy obtained by burning the taken powder charge, we use the formula: Qx = mz * qp, where mz is the mass of the taken powder charge (mz = 5 g = 5 * 10 ^ -3 kg); qп – beats. heat of combustion of gunpowder (qp = 3.8 * 106 J / kg).

Let’s perform the calculation: Qx = mz * qp = 5 * 10 ^ -3 * 3.8 * 10 ^ 6 = 19 * 10 ^ 3 J.

Answer: When the taken powder charge is burned, 19 kJ of energy will be released.