In Which of the Following Processes Is ΔH = ΔE

question 60

Multiple Choice

In which of the following processes is ΔH = ΔE ?

• A)Two moles of ammonia gas are cooled from 325°C to 300°C at 1.2 atm.
• B)One gram of water is vaporized at 100°C and 1 atm.
• C)Two moles of hydrogen iodide gas react to form hydrogen gas and iodine gas in a 40-L container.
• D)Calcium carbonate is heated to form calcium oxide and carbon dioxide in a container with variable volume.
• E)One mole of solid carbon dioxide sublimes to the gas phase.

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