Consider the Expression Below, Showing the Terms Which Contribute to the Heat

question 42

Multiple Choice

Consider the expression below, showing the terms which contribute to the heat of solution, ΔH_soln: ΔH_soln = ΔH_solute + ΔH_solvent + ΔH_mix
Which of the following sets correctly shows the signs (positive or negative) of the three terms on the right hand side of the equation?

• A)Δ H _solute > 0; Δ H _solvent > 0; Δ H _mix > 0
• B)Δ H _solute < 0; Δ H _solvent < 0; Δ H _mix < 0
• C)Δ H _solute > 0; Δ H _solvent > 0; Δ H _mix < 0
• D)Δ H _solute < 0; Δ H _solvent < 0; Δ H _mix > 0
• E)Δ H _solute < 0; Δ H _solvent > 0; Δ H _mix < 0

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Definitions:

Marginal Returns

The additional output or benefit received from producing one more unit of a good or service.

Marginal Cost

The cost added by producing one additional unit of a product or service, a crucial concept for making economic decisions.

Average Total Cost

The total cost divided by the quantity produced, indicative of the cost per unit of output.

Average Fixed Cost

Fixed cost divided by output.