MCQ
Energy hidden in a definite quantity of substance is:
- AEnthalpy
- BInternal energy
- CFree energy
- DEntropy
Explanation:
Internal energy is the hidden energy in a definite quantity of substance.
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$(C= 3 \times 10^8 \,ms^{-1}$ and $N_A =6.02 \times mol^{-1}).$
| $A$ | $B$ | $C$ | |
| $IE_1$ | $400$ | $550$ | $1150$ |
| $IE_2$ | $2650$ | $1070$ | $2090$ |
Identify the element which represent a nonmetal.