In the Space Between Two Stars, the Temperature of a Gas

question 12

Multiple Choice

In the space between two stars, the temperature of a gas cloud is 12 K; and the density of the gas is 1.2 × 10^-8 atom/m³.What is the absolute pressure of the gas?

• A)2.0 × 10^-30 Pa
• B)1.2 × 10^-28 Pa
• C)2.0 × 10^-17 Pa
• D)1.2 × 10^-6 Pa
• E)1.4 × 10^-4 Pa

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Definitions:

Molecule

The smallest unit within a chemical substance that possesses the chemical attributes of the specific element or compound.

Lewis Structure

A representation of molecules showing all the valence electrons as dots or lines, highlighting the bonding between atoms and any lone pairs.

Empirical Formula

The simplest integer ratio of the elements present in a compound, not indicating the actual number of atoms.

Molecular Formulas

A representation of the types and numbers of atoms in a molecule using symbols and numerical subscripts.