The following information is given for magnesium at 1 atm: boiling point = 1.090×10³ °C melting point = 649.0 °C specific heat solid = 1.017 J/gºC specific heat liquid = 1.339 J/gºC AHvap(1.090x103³ °C) = 5.424x10³ J/g AHfus (649.0 °C) 368.3 J/g = A 20.80 g sample of liquid magnesium at 741.0 °C is poured into a mold and allowed to cool to 22.0 °C. How many kJ of energy are released in this process. Report the answer as a positive number. kj

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Subject  :- Chemistry

The following information is given for magnesium at 1 atm:
boiling point = 1.090x10³ °C AHvap(1.090×103³ °C) =
melting point = 649.0 °C
AHfus (649.0 °C) = 368.3 J/g
specific heat solid = 1.017 J/gºC
specific heat liquid = 1.339 J/g °C
5.424x10³ J/g
A 20.80 g sample of liquid magnesium at 741.0 °C is poured into a mold and allowed to cool to
22.0 °C. How many kJ of energy are released in this process. Report the answer as a positive
number.
kJ
Transcribed Image Text:The following information is given for magnesium at 1 atm: boiling point = 1.090x10³ °C AHvap(1.090×103³ °C) = melting point = 649.0 °C AHfus (649.0 °C) = 368.3 J/g specific heat solid = 1.017 J/gºC specific heat liquid = 1.339 J/g °C 5.424x10³ J/g A 20.80 g sample of liquid magnesium at 741.0 °C is poured into a mold and allowed to cool to 22.0 °C. How many kJ of energy are released in this process. Report the answer as a positive number. kJ
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