The highest soil temperature in Turkmenistan reaches 77 ° C. What is the initial temperature of a giant chicken egg

| September 1, 2021 | education

The highest soil temperature in Turkmenistan reaches 77 ° C. What is the initial temperature of a giant chicken egg weighing 420 g, registered in 1977 in Kyrgyzstan, if it received 40 kJ of energy when it was covered with hot sand? The specific heat capacity of the egg content is 2 kJ / (kg • K).

Given: t (temperature reached by the egg) = 77 ºС; m (mass of a giant chicken egg) = 420 g (in SI m = 0.42 kg); Q (heat energy received by the egg) = 40 kJ = 40 * 10 ^ 3 J; C (specific heat capacity of the egg content) = 2 kJ / (kg * K) = 2 * 10 ^ 3 J / (kg * K).

To calculate the initial temperature of a giant chicken egg, we use the formula: Q = C * m * (t – t0) and t0 = t – Q / (C * m).

Calculation: t0 = 77 – 40 * 10 ^ 3 / (2 * 10 ^ 3 * 0.42) = 29.38 ºС.

Answer: The giant chicken egg had a temperature of 29.38 ºС.



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