As a rubber band is stretched, it gets warmer, when released, it gets cooler. The correct sign of thermodynamic parameters for stretching of rubber band is

As a rubber band is stretched, it gets warmer, when released, it gets

1.	As a rubber band is stretched, it gets warmer, when released, it gets cooler. The correct sign of thermodynamic parameters for stretching of rubber band is
Answer» `Delta H = -ve` `Delta H = +ve` `Delta S = -ve` `Delta S = +ve` Solution :As rubber band is STRETCHED, the polymeric MOLECULES come close together and HENCE heat is released. Close packing in streched rubber decreases the entropy against the LOOSELY held polymeric molecules in NORMAL relaxed rubber.