Problem data: m (mass of ether taken) = 250 g (in SI m = 0.25 kg); t (temperature) = 35 ºС (ether has reached the vaporization temperature).
Constants: according to the condition L (specific heat of vaporization of ether) = 0.4 * 10 ^ 6 J / kg.
To calculate the heat required for the transition of the taken ether into steam, we apply the formula: Q = L * m.
Calculation: Q = 0.4 * 10 ^ 6 * 0.25 = 100 * 10 ^ 3 J (100 kJ).
Answer: In order for the taken ether to turn into steam, it is necessary to spend 100 kJ of heat.
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