A chemical process involves decrease in enthalpy and decrease in entropy. If the magnitude of change in enthalpy is 1000 times the change in entropy, the process is spontaneous at

Given   ΔH=−Ve  and  Δs=−Ve  ;ΔG=ΔH−T∆SAt equilibrium, ΔG=0∴Teq=ΔHΔSTeq=10001Teq=1000KTeq=727oCΔG=ΔH−TΔSΔG=−Ve−T−VeProcess becomes spontaneous when ΔG=-Ve which is only possible when temperature is below 1000K (or) 727°c.