The following information is given for magnesium at 1 atm: boiling point = 1090 °C melting point = 649 °C specific heat solid = 1.02 J/g °C specific heat liquid = 1.34 J/g °C AHvap(1090 °C) = 132 kJ/mol AHfus (649 °C) = 8.95 kJ/mol kJ are required to melt a 42.5 g sample of solid magnesium, Mg, at its norm Submit Answer

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The following information is given for magnesium at 1 atm:
boiling point = 1090 °C
melting point = 649 °C
specific heat solid = 1.02 J/g°C
specific heat liquid = 1.34 J/g °C
AHvap(1090 °C) = 132 kJ/mol
AHfus (649 °C) = 8.95 kJ/mol
kJ are required to melt a 42.5 g sample of solid magnesium, Mg, at its normal melting point.
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Transcribed Image Text:The following information is given for magnesium at 1 atm: boiling point = 1090 °C melting point = 649 °C specific heat solid = 1.02 J/g°C specific heat liquid = 1.34 J/g °C AHvap(1090 °C) = 132 kJ/mol AHfus (649 °C) = 8.95 kJ/mol kJ are required to melt a 42.5 g sample of solid magnesium, Mg, at its normal melting point. Submit Answer
What is the energy change when the temperature of 11.4 grams of solid chromium is decreased from 39.5 °C t
23.7 °C?
Answer:
Submit Answer
Joules
Transcribed Image Text:What is the energy change when the temperature of 11.4 grams of solid chromium is decreased from 39.5 °C t 23.7 °C? Answer: Submit Answer Joules
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