Determine the amount of heat required to vaporize 8 kg of ether taken at a temperature of 10 ° C

To calculate the cost of heat for turning 8 kg of taken ether into steam, we use the formula: Q = Ce * m * (tpar – t0) + L * m = (Ce * (tpar – t0) + L) * m.

Constants and variables: Se – beats. heat capacity of ether (Cc = 2350 J / (kg * K)); tpap – temperature of transition to steam (tpap = 35 ºС); t0 – initial ether temperature (t0 = 10 ºС); L – beats. heat of vaporization (L = 0.4 * 10 ^ 6 J / kg); m is the mass of ether taken (m = 8 kg).

Calculation: Q = (2350 * (35 – 10) + 0.4 * 10 ^ 6) * 8 = 3.67 * 10 ^ 6 J (3.67 MJ).