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.
Correct Answer:
Verified
Correct Answer:
Verified
Q55: Sand is converted to pure silicon in
Q56: If, as a pioneer, you wished to
Q57: The standard heat (enthalpy) of formation of
Q58: A system that does no work but
Q59: The standard state of a substance in
Q61: For all processes, both q and ΔE
Q62: Which one of the following is not
Q63: Combustion of a hydrocarbon will release more
Q64: Use the following data to calculate the
Q65: Calcium hydroxide, which reacts with carbon dioxide