A Sample of Ideal Monatomic Gas Is Cooled by 50

question 46

Multiple Choice

A sample of ideal monatomic gas is cooled by 50.0°C at constant volume by removing 831 J of energy from it.How many moles of gas are in the sample? (R = 8.31 J/mol ∙ K)

• A)2.50 mol
• B)1.50 mol
• C)1.33 mol
• D)1.00 mol

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Definitions:

Hypnosis

A trance-like mental state in which a person becomes highly suggestible and is able to focus intensely on a specific thought or memory, excluding any other thoughts.

Somniloquy

The act of talking during sleep, a type of parasomnia that can occur in any stage of sleep.

Somnambulism

The scientific term for sleepwalking, a condition in which a person, while asleep, performs activities that are usually only performed while in a state of full consciousness.

Meditation

The attainment of a peaceful state of mind in which thoughts are not occupied by worry; the meditator is mindfully present to their thoughts and feelings but is not consumed by them.