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Thermochemistry: Heat and Volume Effects in Solution

Essay by   •  May 17, 2017  •  Lab Report  •  488 Words (2 Pages)  •  1,043 Views

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Experiment No. 9

HEAT AND VOLUME EFFECTS IN SOLUTION

Objectives:

To determine the relation between heat effects and volume changes accompanying solution formation.

To correlate molecular structures to intermolecular force and its influence on the solution process.

Data:

Table 1. Predicted results and observed results.

TWO COMPONENTS MIXTURES

PREDICTIONS

OBSERVATIONS

REMARKS

∆ H

∆V

∆H

∆V

Methanol-acetone

Exothermic

< 8

Exothermic

= 8

⬆ in ∆V as ∆H ⬆ at room temp

Methanol- ethanol

Exothermic

< 8

Exothermic

< 8

⬆ in ∆V as ∆H ⬆ at room temp

Methanol-dichloroetane

Exothermic

< 8

Exothermic

< 8

⬆ in ∆V as ∆H ⬆ at room temp

Ethanol-acetone

Exothermic

< 8

Exothermic

< 8

⬆ in ∆V as ∆H ⬆ at room temp

Ethanol-dichloroethane

Exothermic

< 8

Exothermic

< 8

⬆ in ∆V as ∆H ⬆ at room temp

Acetone-dicholoroethane

Exothermic

< 8

Exothermic

< 8

⬆ in ∆V as ∆H ⬆ at room temp

Discussion:

In

...

...

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