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## Homework Statement

The volume of a m (mass) hydrogen quantity,which wear initially at the temperature t1, increases k times by isobar dilatation.Find: a) L= ? b) the heath Q absorbed. c)Δ U =?

## Homework Equations

How to solve it?

## The Attempt at a Solution

pv/t=p2v2/t2 ?

L= p * Δ V ?

I don't know... and I am getting grade tomorrow on it...