Which of the following polymers is used to obtain shopping bags?

In a process, a system performs $$238 \mathrm{~J}$$ of work on it's surrounding by absorbing $$54 \mathrm{~J}$$ of heat. What is the change in internal energy of system during this operation?

When $$\mathrm{x} \mathrm{kJ}$$ heat is provided to a system, work equivalent to $$\mathrm{y} \mathrm{J}$$ is done on it. What is internal energy change during this operation?

When 2-Chlorobutane is boiled with concentrated alcoholic solution of KOH, the major product formed is