For the Reaction H₂(g) + S(s) $\rarr$ H₂S(g) $\Delta$ H ^$\circ$ = -20

question 86

Multiple Choice

For the reaction H₂(g) + S(s) $\rarr$ H₂S(g) , $\Delta$ H ^$\circ$ = -20.2 kJ/mol and $\Delta$ S ^$\circ$ = +43.1 J/K·mol. Which of these statements is true

• A) The reaction is only spontaneous at low temperatures.
• B) The reaction is spontaneous at all temperatures.
• C) (\(\Delta\)G^\(\circ\)) becomes less favorable as temperature increases.
• D) The reaction is spontaneous only at high temperatures.
• E) The reaction is at equilibrium at 25^\(\circ\)C under standard conditions.

---

Definitions:

Spot Exchange Rate

The current price at which one currency can be exchanged for another for immediate delivery.

Spot Trade

A transaction that involves the immediate exchange of one currency or commodity for another, settling immediately or within a short period.

Direct Exchange Rate

A foreign exchange rate quoted as the home country's currency per unit of the foreign currency.

Euros

The official currency of the Eurozone, which consists of 19 of the 27 European Union countries, serving as a major global reserve currency.