Formation of Two Moles of Hydrogen Chloride Gas from the Gases

question 34

Multiple Choice

Formation of two moles of hydrogen chloride gas from the gases hydrogen and chlorine is a reaction for which ΔH is -185 kJ.Which of the following statements is correct?
i.The reaction is exothermic.
ii.Enthalpy of the system decreases.
iii.Heat is a "product".

• A)All are correct
• B)All are incorrect
• C)i only
• D)ii only
• E)iii only

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Definitions:

Accelerates Heartbeat

Refers to the increase in heart rate, which can occur due to various factors such as physical activity, emotional stress, or medical conditions.

Inhibits Digestion

Refers to substances or actions that slow down or decrease the efficiency of the body's digestive process.

Endorphin Agonists

Endorphin agonists are substances that can bind to and activate endorphin receptors in the brain, mimicking the effects of endorphins, which are natural pain relievers and pleasure enhancers produced by the body.

Endorphin Antagonists

Substances that block the action of endorphins, natural pain-relieving compounds in the body, affecting pain and stress responses.