In a typical lightning flash, a charge of 30C is transferred between two points having a potential difference of 109 volt. If all the energy released could be used to melt ice at 00C, the amount of ice melted (in grams) is :
A
8.93×107
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
9×107
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
6.02×107
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
4.16×107
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A8.93×107 Work done (energy released) is equal to the charge times the Potential difference. W=30×109=3×1010J Also, the energy required to melt 1g of ice (enthalpy of fusion) at 0oC is 334J.