GCE O-Level · Chemistry (6092)
その場で採点される選択問題 5 問と、解説つきの記述問題 1 問。すべて「Ammonia」からの出題です。
In the industrial manufacture of ammonia via the Haber process, nitrogen and hydrogen react according to the following equation:
\(\text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightleftharpoons 2\text{NH}_3(\text{g})\)
Which set of conditions is typically used in the reactor to achieve an optimal balance between the rate of reaction and the yield of ammonia?
Ammonia is produced industrially using the Haber process. Which statement correctly describes the source of a raw material or a characteristic of this process?
In a Haber process simulation, \( 40 \text{ cm}^3 \) of nitrogen gas is reacted with \( 60 \text{ cm}^3 \) of hydrogen gas. If the reaction achieves a \( 40\% \) yield based on the limiting reactant, what is the volume of ammonia produced? (Assume all gas volumes are measured at the same temperature and pressure.)
In the industrial manufacture of ammonia via the Haber process, which of the following substances is used as a catalyst to increase the rate of reaction?
Which balanced chemical equation correctly represents the reaction between aqueous ammonia and dilute sulfuric acid to form a salt?
When ammonia gas is passed over heated copper(II) oxide, a reddish-brown solid, water vapour, and a colourless gas are formed.
Identify the colourless gas and write a balanced chemical equation for this reaction, including state symbols.
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