Ethene, C_2H_4, can be produced in the following industrial system: C_2H_6_(g) +

Question

Ethene, C_2H_4, can be produced in the following industrial system: C_2H_6_(g) + energy C_2H_4_(g) + H_2_(g) The conditions that are necessary to maximize the equilibrium yield of C_2H_4 are low temperature and low pressure. low temperature and high pressure. high temperature and low pressure. high temperature and high pressure. Consider the following equilibrium: 2NO_(g) + Br_2_(g) + energy 2NOBr_(g) The equilibrium will shift to the left as a result of adding a catalyst. removing NOBr. increasing the volume. increasing the temperature. Consider the following equilibrium: CO_(g) + H_2O_(g) CO_2_(g) + H_2_(g) delta H = -41KJ What will cause a shift to the left? adding a catalyst decreasing pressure by increasing volume adding CO increasing the temperature decreasing the temperature

Explanation / Answer

5.

in order to maximize products:

add energy, since it is required to form the products; that is, high temperature (which means high energy)

pressure helps for the least mol formation

products = 1+1 = 2 mol of gases

reactants = 1 mol of gas

then

avoid high pressure, go for low pressures

so:

High T and low P will do!

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