Choose the letter for the following statement that is NOT TRUE?
a. An S orbital has a spherical shape
b. An orbital is a 3-D region of space occupied by an electron(s)
c. H2 + 02 --> H20 + Heat is an example of an exothermic reaction
d. Temperature is movement of a substance
e. Potential energy is stored energy
f. All of the above statements are true
d. Temperature is movement of a substance
Choose the incorrect Statement below
a. electrolytes are strong electrolytes when then complete ionize (100% dissociation)
b. vapor pressure increases as intermolecular forces from starting liquid decrease
c. HCI is a strong acid and therefore a strong electrolyte
d. Normal boiling point has a same definition as boiling point but at a standard 760mmHg
e. Boiling Point is the pressure at which vapor pressure is less than atmospheric pressure
b. vapor pressure increases as intermolecular forces from starting liquid decrease
To determine the letter for the statement that is NOT true, we need to carefully analyze each option. Let's go through them one by one:
a. An S orbital has a spherical shape: This statement is true. S orbitals indeed have a spherical shape.
b. An orbital is a 3-D region of space occupied by an electron(s): This statement is also true. Orbitals are precisely defined as 3-D regions of space where electrons are most likely to be found.
c. H2 + O2 --> H2O + Heat is an example of an exothermic reaction: This statement is true. The given chemical equation represents a reaction that releases heat energy, thus making it an exothermic reaction.
d. Temperature is movement of a substance: This statement is not true. Temperature is a measure of the average kinetic energy of the particles in a substance, not the movement of a substance itself. Temperature relates to the motion of the particles within a substance, not the substance as a whole.
e. Potential energy is stored energy: This statement is true. Potential energy refers to energy that is stored within an object or system, which can be later converted into other forms of energy.
Since option d is the statement that is NOT true, the correct answer is d. Temperature is movement of a substance.