MCQ
Enthalpy change for reaction, $\frac{1}{2}{H_2} + \frac{1}{2}C{l_2} \to HCl$, is called
- AEnthalpy of combination
- BEnthalpy of reaction
- ✓Enthalpy of formation
- DEnthalpy of fusion
✓
Answer
Correct option: C.
Enthalpy of formation
c
The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of $1\, mole$ of the substance from its constituent elements, with all substances in their standard states.
The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of $1\, mole$ of the substance from its constituent elements, with all substances in their standard states.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The angle between $s{p^2}$orbitals in ethylene is......$^o$
→What should be the correct statement with respect to $XeF_5^-$ ?
→Correct $IUPAC$ name
→$C + {O_2} \to C{O_2};\,\Delta H = X$
→$CO + \frac{1}{2}{O_2} \to C{O_2};\,\Delta H = Y$
Then the heat of formation of $CO$ is
When magnesium is burnt in air, the weight of magnesium:
Which law states that the total mass of the reactants is equal to the total mass of the products in a chemical reaction?
The mass number is same as __________.
Which of the following is the most electropositive element
The $IUPAC$ name of following compound is
→