How Much Heat Is Absorbed/released When 25

question 129

Multiple Choice

How much heat is absorbed/released when 25.00 g of NH₃(g) reacts in the presence of excess (g) to produce NO(g) and H₂O(l) according to the following chemical equation?
4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 6 H₂O(l) ΔH° = 1168 kJ

• A) 428.6 kJ of heat are absorbed.
• B) 428.6 kJ of heat are released.
• C) 1715 kJ of heat are absorbed.
• D) 1715 kJ of heat are released.

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Definitions:

Federal Funds Rate

The interest rate at which depository institutions trade federal funds (balances held at Federal Reserve Banks) with each other overnight.

Federal Reserve

The central banking system of the United States, responsible for monetary policy, regulation of financial institutions, and stability of the financial system.

Open-market Purchase

The buying of securities by a central bank from the market to inject liquidity and encourage economic growth.

Aggregate Demand

The complete need for goods and services across an economy at an established price level within a specific period.