mcait91161 mcait91161

08-01-2024
Physics

contestada

What is the energy needed to melt 20 g of sodium (Na) from 200.0 °C to 75.0 °C? The melting point of sodium is 97.8 °C, and the boiling point is 883 °C.
a) 4.32 kJ
b) 3.78 kJ
c) 5.21 kJ
d) 6.15 kJ

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