Homework Help: physics

Posted by andrew on Monday, May 7, 2012 at 10:11am.

A potential difference of 102 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative relative to the outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the cell? (in J)

physics - Elena, Monday, May 7, 2012 at 11:09am
W = q•Δφ = 11•e•102•10^-3 =
=11•1.6•10^-19•102•10^-3=1.8•10^-19 J

Answer this Question

Related Questions

Physics - An unknown potential difference exists between the inner and outer ...
physics - The inner and outer surfaces of a cell membrane carry a negative and ...
Physics 112 - The inner and outer surfaces of a cell membrane carry a negative ...
physics 2 - The inner and outer surface of a cell membrane carry a negative and ...
Physics - Thank you for answering my previous questions! I have another one now ...
Physics -- Repost - Homework Help Forum: Physics Posted by Sandra on Sunday, ...
Physics - A simplified model for an erythrocyte is a spherical capacitor with a...
Physics - A simplified model for an erythrocyte is a spherical capacitor with a ...
Physics - A simplified model for an erythrocyte is a spherical capacitor with a ...
Physics - 1.A spherical condenser has inner and outer spheres of radii a and b ...

For Further Reading

First Name:
School Subject:
Answer: