[WetToast]

Hi everyone, this is my first time posting.
A tanker truck containing 1.25×105L anhydrous ammonia at 862kPa pressure.  The truck crashes causing a rupture in the tank and the ammonia to leak into the atmosphere.  Assuming that the ammonia gas forms a cylindrical cloud 1.75m high, centered on the crashed tanker:

• Determine the total volume of ammonia that leaks at STP.
  The minimum safe distance away someone would have to stand.

So what I've tried is that I've tried solving for a system of equations, but no matter what I can't find a solution for V2 or T1. Although not formally stated, if I assume constant temperature I get 1.077*10^6L for the volume, and 14.05m for the distance to be safe.

Some theories I have are to find molar mass and density to solve for volume? Don't really know how to work that out however.

[Borek]

Definitely assuming constant temperature is the only way of solving.