Answer: The changes of physical state in these cases are:
When oxygen gas is converted to liquid oxygen, it undergoes condensation.
When solid sulfur is converted directly to sulfur gas, it undergoes sublimation. This is a process where a substance goes directly from a solid state to a gaseous state without passing through the liquid state.
Explanation: The changes of physical state in these cases are:
When oxygen gas is converted to liquid oxygen, it undergoes condensation.
When solid sulfur is converted directly to sulfur gas, it undergoes sublimation. This is a process where a substance goes directly from a solid state to a gaseous state without passing through the liquid state.