Which of the Following Statements Is/are True? I $\Delta$ H Is a State Function and Q =

question 37

Multiple Choice

Which of the following statements is/are true? I.q (heat) is a state function because $\Delta$ H is a state function and q = $\Delta$ H.
II.When 50.0 g of aluminum at 20.0°C is placed in 50.0 mL of water at 30.0°C,the H₂O will undergo a smaller temperature change than the aluminum.(The density of H₂O = 1.0 g/mL,specific heat capacity of H₂O = 4.18 J/g°C,specific heat capacity of aluminum = 0.89 J/g°C)
III.When a gas is compressed,the work is negative since the surroundings are doing work on the system and energy flows out of the system.
IV.For the reaction (at constant pressure) 2N₂(g) + 5O₂(g) $\to$ 2N₂O₅(g) ,the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps.

• A)I,II,IV
• B)II,III
• C)II,III,IV
• D)II,IV
• E)All of the above statements are true.

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