alanihuling
15.06.2020 •
Chemistry
La disolución de cloruro de calcio, CaCl2, es un proceso exotérmico, su calor de disolución es - 81.35 kJ mol-1. Calcular la temperatura, en °C, alcanzada por la solución cuando 20.00 g de cloruro de calcio se disuelven en 0.080 kg de agua a 20.00°C, en un calorimetro a presion constante, cuya capacidad calorifica es 320.0 J °C-1. El calor especifico de la solución es 4.184 J g-1 °C-1.
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Ответ:
The flow of heat from Earth's interior to the surface is estimated at 47±2 terawatts (TW) and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the primordial heat left over from the formation of Earth.
Explanation:
so it should be D