Use the _DfH° Information Provided to Calculate _DrH° for the Following

question 57

Multiple Choice

Use the _DfH° information provided to calculate _DrH° for the following: $$\begin{array} { l r r l } & \mathrm { D } _ { \mathrm { f } } H ^ { \circ } ( \mathrm { kJ } \mathrm { mol } - 1 ) & \mathrm { SO } _ { 2 } \mathrm { Cl } _ { 2 } ( g ) + 2 \mathrm { H } _ { 2 } \mathrm { O } ( l ) \rightarrow 2 \mathrm { HCl } ( g ) + \mathrm { H } _ { 2 } \mathrm { SO } ( l ) \quad \mathrm { D } _ { \mathrm { r } } H ^ { \circ } = ? \\\mathrm { SO } _ { 2 } \mathrm { Cl } _ { 2 } ( g ) & - 364 & & \\\mathrm { H } _ { 2 } \mathrm { O } ( l ) & - 286 & \\\mathrm { HCl } ( g ) & 92 & \\\mathrm { H } _ { 2 } \mathrm { SO } _ { 4 } ( l ) & - 814 &\end{array}$$

• A)-256 kJ mol^-1
• B)+161 kJ mol^-1
• C)-62 kJ mol^-1
• D)+800.kJ mol^-1
• E)-422 kJ mol^-1

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Definitions:

Demand Function

An equation that describes the quantitative relationship between the demand for a good and various factors affecting it, such as price, income, and price of related goods.

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, reflecting the sensitivity of consumers to price changes.

Normal Goods

Normal goods are goods whose demand increases when consumer income rises, and decreases when consumer income falls, opposite to inferior goods.

Perfect Substitutes

Goods that can completely replace each other in consumption, resulting in consumers being indifferent to which product they consume.