Predict the Physical State of Helium at 4 K (Bp

question 91

Multiple Choice

Predict the physical state of helium at 4 K (Bp = 4 K) and 1.1 atm pressure.

• A)solid
• B)liquid
• C)gas
• D)all of the above
• E)none of the above

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Definitions:

Hypothetical Syllogism (HS)

A logical argument formed by two conditional statements and a conclusion that follows from chaining the conditionals together.

Modus Ponens (MP)

A logical argument form that asserts if "P implies Q" and "P is true," then "Q must also be true."

Modus Tollens (MT)

A logical argument form where the denial of the consequent leads to the denial of the antecedent, often structured as "If P, then Q. Not Q, therefore not P."

Disjunctive Syllogism (DS)

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