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Specific heat capacity of copper = 0.383 J/(g*°C)

Consider the graph above. Which of these substances has the highest specific heat capacity?

2C₂H₆(g) + 7O₂(g) 4CO₂(g) + 6 H₂O(g)

In an experiment, 50 g of a metal was heated to 100^oC and placed in 200 g of a liquid at 25^oC. Which of the following combinations of metal and liquid will produce the largest temperature increase in the liquid? (Assume that there is no transfer of energy to the surroundings.)

2S(s) + 3O₂(g) + 2H₂O(l)2H₂SO₄(l)

Data:

S(s) + O2(g) SO2(g)	Hrxn = -296.83 kJ
2SO3(g)O2(g) + 2SO2(g)	Hrxn = -198.2 kJ
SO3(g) + H2O(l)H2SO4(l)	Hrxn = -227.72 kJ

In an experiment a block of aluminum was heated to 100^oC and placed in 200 g of water at 25^oC. If the final temperature of the system is 43^oC, and no heat transfer to the surroundings occurred, what is the mass of the aluminum block?

P₄(s) + 5O₂(g) P₄O₁₀(s)

If 67.2 g of P₄ is burned,1620 kJ of energy is evolved. What is the molar enthalpy of combustion of P₄ if the process was carried out under constant pressure?

Phase	Hof (kJ/mol)	So (J/(K*mol))
white tin	0	51.5
grey tin	-2.1	44.8

Which type of stability does each exhibit at 40 ^oC?

white tin {1:MULTICHOICE:kinetically stable#No, that's incorrect.~=thermodynamically stable#Correct!}

grey tin {1:MULTICHOICE:=kinetically stable#Correct!~thermodynamically stable#No, that's incorrect.}

Zn(ClO₃)₂(aq) + Ni(s)

One method for protecting metals against corrosion is to connect the metal directly to a "sacrificial anode". This is the method used to protect pipelines and ships hulls. Which of the following metals would you consider the best candidate for a sacrificial anode for a ship's hull? The hull is steel (which is mostly iron).