Steam in a piston/cylinder initially at 0.40 mpa and 180°c is heated to 400°c at
constant pressure. calculate (a) internal energy change (∆u), (b) heat added (q) and (c)
work done (w) per kilogram of steam in the cylinder. do not assume that steam is an
ideal gas.

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .