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N₂(g)+3H₂(g) ⇋ 2NH₃(g) ΔH=-92kJmol^-1 (equation for question above)
According to Le Chatelier's principle, a system in dynamic equilibrium will shift th...

In our bodies we have a host of cells that make up our immune system. The immune system itself can be divided into the innate and adaptive immune response. If we use an analogy, the innate immune system a...

In her novel 'Frankenstein', Shelly uses time and setting to foreshadow danger and doom for Victor, especially in relation to Robert Walton.
Shelley's opening setting of Walton's ship sets a tone of ...

Assumption: If sqrt(2^n- 1) ∈ℕ , it means that there is a k ∈ ℕ such that (2^n-1) = k^2  ⇒ k is odd, so there is m ∈ ℕ such that (2^n-1)=(2m+1)^2 . By solving the equation we get 2^n= 4m^2+4m+2. We divide...

政府收入的增加，平均商品价格的增加，旅游人总数的增加