Temperature also affects the motion of atoms in a gas. Given what you know about temperature, pressure, and volume, which statem
ent is NOT correct? A) As a gas is heated, the volume increases.
B) As a gas is heated, the pressure increases.
C) As a gas is heated, the pressure decreases.
D) As a gas is heated, energy increases and molecules spread out.
From the choices given, the statement that "as a gas is heated, the pressure decreases is false".
When gases are heated, their molecules expands and the volume of the gas increases. In a fixed container, the pressure of the gases will also increases.
Gases lack internal cohesion and very weak to no intermolecular forces binding them together.
When they are subjected to heat, they gain more energy(kinetic energy) which causes them to begin to spread out.
Thus, they take up even more space allowing volume to increase appreciably.
Oxygen is the 8th element in the periodic table. This means that oxygen has 8 protons and 8 electrons. In order to get the number of neutrons you take the atomic weight in this case 15.9999~16 and you subtract it by the number of protons (16-8).
