[填空题]
The feasibility of a reonow:y)x ft,uz4;yb7 zk5mq9 0qbcr 1 action proceeding spontap fildp.ba15 2neously can be predicted using the f5dp afi2lp1b. ollowing equation:
ΔG=−TΔS+ΔH.
Where ΔG is the change in Gibb’s free energy, ΔS is the change in entropy, and ΔH is the change in enthalpy.
1.When ΔG<0, a reaction can be described as spontaneous. Use the graph above to deduce the lowest temperature at which the reaction becomes spontaneous.
Read graph at ΔG=0, K.
2.Calculate the gradient of the line and state its units.
3.Use your answer to part (b) to deduce the value and correct units for ΔS.
4.Use the graph to determine the value for ΔG when the temperature is raised to 675K.
Extrapolation of the line= (kJ mol$^{-1}$)
5.Calculate a value for y-intercept= and state the correct units {kJmol$^{-1}$|kJmol$^{-1}K^{-1}$}.
