The entropy change for a phase transition at constant temperature is given by:
Practice Questions
Q1
The entropy change for a phase transition at constant temperature is given by:
ΔS = ΔH/T
ΔS = T/ΔH
ΔS = ΔH*T
ΔS = ΔH + T
Questions & Step-by-Step Solutions
The entropy change for a phase transition at constant temperature is given by:
Step 1: Understand that a phase transition is when a substance changes from one state of matter to another, like from solid to liquid (melting) or liquid to gas (vaporization).
Step 2: Recognize that during this transition, the temperature remains constant.
Step 3: Learn that ΔH represents the enthalpy change, which is the amount of heat energy absorbed or released during the phase transition.
Step 4: Know that ΔS represents the change in entropy, which is a measure of disorder or randomness in a system.
Step 5: Use the formula ΔS = ΔH/T, where T is the absolute temperature (in Kelvin) at which the phase transition occurs.
Step 6: Plug in the values of ΔH and T into the formula to calculate the change in entropy (ΔS).
