the constant pressure heat capacity of a sample of a perfect gas was found to vary with pressure according to the expression Cp/(JK)=20.17+O.4001T. calculate, q,w, changeinU and change in H

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

a:

by the combination of an unlimited number of elements

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

i'm wiling to try and you : )