MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
Mohini Belani Grade: 12
        

Estimate the minimum potential difference needed to reduce Al2O3 at 5000C. The free energy change for the decomposition reaction is:


2/3 Al2O3----------------->4/3Al +O2
























?G=+960kJ

7 years ago

Answers : (1)

askiitian.expert- chandra sekhar
10 Points
										

Hi Belani,


2/3 Al2O3----------------->4/3Al +O2



ΔG= +960 kJ for 2/3moles


But ΔG=-nFE


E = ΔG/(-nF)


F = 96500 C mol-1


E = 960×1000/(- 2/3 × 96500) = -14.9 V


This implies that the minimum potential difference needed is 14.9 V


 


askiitian.expert- chandra sekhar

7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details