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potassium metal has melting point of 63.65 C and a boiling point of 774 C Enthalpy...

potassium metal has melting point of 63.65 C and a boiling point of 774 C

Enthalpy fusion = 14.37 cal/g

enthaply of vaporization = 490.3 cal/g

Specific heat @ solid = .1759 cal/gC

specfic heat @ liquid =.5425 cal /gC

specfic heat @ gas = .2629 cal /gC

a) draw heatung curve that us heated from 23C to 1200c

b) Calculate total heat required in units of kJ for 39.5 g of potassium
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Answer #1

120001 ↑ At Boiling Temp Milting 63.65 F Heat absosbed > 774 17 (9) Cal 23°C - > 63.65C 63-65°C ~ (s) 2 15) R2 (1) 9,= 39.5%

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