Question

Methylene chloride is commonly used in paint, stain, and glue strippers even though it is considered to be a carcinogen. Methylene chloride has a melting point of - 94.8°C, a boiling point of
40.0°C, the specific heat of 1.21 J/g *K for the solid and liquid, and 0.608 J/g*K for the gas. The heats of fusion and vaporization are ΔHfus of 73.40 J/g, and ΔHvap of 334.35 J/g respectively. Determine how many joules of energy are needed to heat 40 grams of methylene chloride from -171.4 ° F to 333 K. Draw out and label your heating curve. This will require a total of 6 steps.

Answer 1

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