Question

True/False (a) According to the first law of thermodynamics, the energy of the universe is constant. Thus, $\Delta E$ is always equal to zero. [Select] (b) When 15 g of aluminum, 15 g of water, and 15 g of silver are subjected to the same amount of heat, water would undergo the smallest change in temperature. (The specific heat capacities of aluminum, water, and silver are 0.89, 4.18, and 0.235 J/g°C, respectively.) [Select] (c) For the reaction 2P + 5Cl$_2$ $\to$ 2PCl$_5$ (at constant pressure), the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps. [Select]

          True/False
(a) According to the first law of thermodynamics, the energy of the universe is constant. Thus, \(\Delta E\) is
always equal to zero.
[Select]
(b) When 15 g of aluminum, 15 g of water, and 15 g of silver are subjected to the same amount of
heat, water would undergo the smallest change in temperature. (The specific heat capacities of
aluminum, water, and silver are 0.89, 4.18, and 0.235 J/g°C, respectively.)
[Select]
(c) For the reaction 2P + 5Cl$_2$ \(\to\) 2PCl$_5$ (at constant pressure), the change in enthalpy is the same
whether the reaction takes place in one step or in a series of steps. [Select]

True/False
(a) According to the first law of thermodynamics, the energy of the universe is constant. Thus, Δ E is
always equal to zero.
[Select]
(b) When 15 g of aluminum, 15 g of water, and 15 g of silver are subjected to the same amount of
heat, water would undergo the smallest change in temperature. (The specific heat capacities of
aluminum, water, and silver are 0.89, 4.18, and 0.235 J/g°C, respectively.)
[Select]
(c) For the reaction 2P + 5Cl2 → 2PCl5 (at constant pressure), the change in enthalpy is the same
whether the reaction takes place in one step or in a series of steps. [Select]

Added by Ines M.

Question

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