Question

Determine the amount of heat, in kJ, required to heat 100.0 g of liquid Ca at 851^{o}C to 951^{o}C. Melting Point = 851^{o}C Boiling Point = 1487^{o}C Molar Heat Capacities C_{solid} = 26.2 J/mol^{o}C C_{liquid} = 31.0 J/mol^{o}C ΔH_{fusion} = 9.33 kJ/mol ΔH_{vaporization} = 162 kJ/mol

Answer 1

Answer:

What steps are necessary to determine the amounts of heat required to convert 100.0 g of solid Ca at 651oC into liquid Ca at 951oC. Then use the following information on Ca to calculate the amounts of heat for each of the heating steps.

Melting Point = 851 oC

Boiling Point = 1487 o C

Molar Heat Capacities

Csolid = 26.2 J/mol oC

Cliquid = 31.0 J/mol oC

ΔHfusion = 9.33 kJ/mol

ΔHvaporization = 162 kJ/mol

IV Heat Added

Part 1:

Calculate the amounts of heat in kJ required to head the solid to its melting point.

Part 2:

Calculate the amounts of heat in kJ required to melt the solid.

Part 3:

Calculate the amounts of heat in kJ required, after the substance is melted, to heat the liquid to indicated temp.