Question

1.A)

What is the equilibrium constant for a reaction at temperature 31.5 °C if the equilibrium constant at 55.4 °C is 1.53?

For this reaction, Δ_rH = 20.2 kJ mol^-1 .

You have 5 attempts at this question.

Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 10⁴" should be entered as "4.32E4".

1B)

What is the Δ_rG° for the following reaction (in kJ mol^-1)?

N_2(g) + O_2(g) + Cl_2(g) ⇌ _{2 NOCl(g)}

_1C)

What is the Δ_rG for the following reaction (in kJ mol^-1) at 298 K?

2 Si _(s) + 3 H_{2 (g)} ⇌ Si₂H_6(g)

The conditions for this reaction are:

P_H2 = 0.87 bar

P_Si2H6 = 1.46 bar

1D)

What is the Δ_rG for the following reaction (in kJ mol^-1) at 298 K?

CH_{4 (g)} + 2 O_{2 (g)} ⇌ CO_{2 (g)} + 2 H₂O _(g)

The conditions for this reaction are:

P_CH4 = 0.72 bar

P_O2 = 0.44 bar

P_CO2 = 0.53 bar

P_H2O = 1.13 bar

Answer 1