Can you design a single pack that can have a dual usage (as a cold and hot pack)
Explain

yes, because

Explanation:

DIP packages are usually made from an opaque molded epoxy plastic pressed around a tin-, silver-, or gold-plated lead frame that supports the device die and provides connection pins.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

the dissolution of polymer can be thermodynamically described in 2 steps.