JEE Main 20206 SeptemberEvening Shift
- Exam
- JEE Main
- Year
- 2020
- Date
- 6 September
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Thermodynamics (C)
JEE Main 2020 · 6 September · Evening Shift · Chemistry · Thermodynamics (C)
For a reaction 4M(s) + nO _ 2 (g) → 2 M _ 2 O _ n (s) The free...
For a reaction
The free energy change is plotted as a function of temperature. The temperature below which the oxide is stable could be inferred from the plot as the point at which :
Options
- Athe slope change from negative to positive
- Bthe free energy change show a change from negative to positive value
- Cthe slope changes from positive to negative
- Dthe slope changes from positive to zero
Correct answer
B. the free energy change show a change from negative to positive value
Step-by-step solution
For oxide to be stable its of formation value should be negative.
Gibbs free energy, also known as the Gibbs function, Gibbs energy, or free enthalpy, is a quantity that is used to measure the maximum amount of work done in a thermodynamic system when the temperature and pressure are kept constant.