MCQ
The bottoms of utensils for cooking food are blackened to:
- AAbsorb minimum heat from fire.
- ✓Absorb maximum heat from fire.
- CEmit radiations.
- DReflect heat to surroundings.
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$(A)$ the process during the path $\mathrm{A} \rightarrow \mathrm{B}$ is isothermal
$(B)$ heat flows out of the gas during the path $\mathrm{B} \rightarrow \mathrm{C} \rightarrow \mathrm{D}$
$(C)$ work done during the path $\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{C}$ is zero
$(D)$ positive work is done by the gas in the cycle $ABCDA$