Aproton is moved so that its electric potential energy increases from 4.0 × 10-14 j to 9.0 × 10-14 j. the magnitude of the charge on a proton is 1.602 × 10-19 c.

what is the electric potential difference through which the proton moved?

2.5 × 105 v
3.1 × 105 v
5.6 × 105 v
8.1 × 105 v

Electric potential difference is option (b) i.e.

Explanation:

It is given that,

The magnitude of charge on the proton,  

The electric potential energy increases from to            

We have to find the electric potential difference through which the proton moved.

The relation between electric potential energy and electric potential difference is given by :

Hence, this is the required solution.

a. is the answer because they are not shared

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.