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Chemistry

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Elza Olson

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Cards in this guide (12)
How can one tell if a reaction has reached equilibrium

the concentrations of products and reactants stop changing.

What is used to describe the conditions of a reaction at equilibrium

An equilibrium constant

Which of these does not describe a significant ethical dilemma in the drug industry

A drug for blood pressure is absorbed in the colon.

How is the Hfusion used to calculate the energy needed to melt a mass of solid

Grams solid mol/g Hfusion

How much energy is consumed by thawing 4.3 g ice

4.3 g * 1 mol/18.02 g * 6.03 kJ/mol

How is the Hfusion used to calculate the mass of solid that 1kJ of energy will melt

1kJ 1/Hfusion g/mol solid

What could make G become negative at a given enthalpy and entropy

Changing the temperature

How does the H reaction relate to the Hf of molecules involved in a reaction

Hreaction = Hf products - Hf reactants

Which has the smallest rate constant k

chemical changes causing leaves to brown in the fall

Which direction of the reaction is favored at 298 k room temperature use the reaction I2s I2g when H 62.4 kJ.mol-1 and S 0.145 kJ.mol-1.k-1

Gas phase Iodine in open cylinder

According to the rate law how do concentrations affect rate

The rate increases as concentrations increase.

What is the enthalpy of reaction-

The enthalpy of a reaction is the amount of heat absorbed in the reaction.

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