QUESTION 15: Which do you think has the greatest entropy, 1kg of solid iron or 1kg of liquid iron? WHy?
THE ANSWER TO THIS QUESTION IS VERY CONCEPTUAL AND INVOLVES A LOT OF LOGIC. IRON, TO BE IN THE LIQUID STATE, MUST BE HEATED TO AN EXTREME, THEREFORE, THE IRON ATOMS HAVE A LOT OF KINETIC ENERGY. HAVING TAKEN THAT INTO CONSIDERATION, THE SOLID IRON IS MUCH COOLER, AND HENCE, THERE IS LESS KINETIC ENERGY WITHIN ITS ATOMS. THE SOLID IRON HAS A TEMPERATURE THAT IS CLOSER TO THE AVERAGE TEMPERATURE, AND HENCE IS CLOSER TO EQUILIBRIUM (OR BALANCE) AND HENCE HAS MORE ENTROPY.
FUN LINK ON ENTROPY (FROM KHAN ACADEMY):
FUN LINK ON ENTROPY (FROM KHAN ACADEMY):