What is the energy released during the evaporation of 500 grams of ether at the vaporization temperature?

To find the energy released (spent) during the evaporation of the taken ether, consider the formula: Q = Le * m, where Le is the specific heat of vaporization of the ether (const, Le = 0.4 * 10 ^ 6 J / kg); m is the mass of ether taken (m = 500 g, in SI m = 0.5 kg).

Let’s perform the calculation: Q = Le * m = 0.4 * 10 ^ 6 * 0.5 = 200 kJ.

Answer: During the evaporation of 500 g of ether, energy was released (wasted) in the amount of 200 kJ.