What is d pressure in empty space? in atm and solve using standard value?

There is no repulsion between electrons unless they come close to each other in a certain proximity.

The gravity pressure of space on a electron is equal to the mass of the electron times the speed of light squared divided by the volume of the electron mass.

empty space has no medium, so its pressure will be zero.

1. electric force Fe / gravitational force Fg = 10^42 (after using relevant values)

2. force on any one fo the charges F = square root of 3 x 9x10^9 q / a^2,

where q = 8.5x10^-6 C and a = side = 0.1 m

hence, F = 7.65 x 10^6 N. its direction will be normal to any one corner along the biscetor of the triangle.

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The absolute pressure of empty space is zero.