Which Statement Below Is True

question 72

Multiple Choice

Which statement below is true?

• A) Some substances have a negative specific heat.
• B) In endothermic reactions, heat is given off to the surroundings.
• C) Specific heat is the same for all liquids but metals each have a different specific heat.
• D) In exothermic reactions, the sign of D H is always negative.
• E) All four of these are false.

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Definitions:

Disjunctive Syllogism (DS)

A form of logical argument where, from two disjunct statements, the denial of one leads to the affirmation of the other.

Constructive Dilemma (CD)

A form of argument where, given premises that jointly imply two conclusions, if one of them is true, then so is the other.

Atomic Sentences

Simple statements in logic that contain no logical connectives or quantifiers, expressing a basic claim.

Truth Table

A mathematical table used in logic to determine the veracity of various propositions under all possible scenarios.