All of the Following Statements Are Correct EXCEPT

All of the following statements are correct EXCEPT

A) in any chemical reaction the change in energies of the system and the surroundings are equal in magnitude but opposite in sign.
B) an expanding gas does work on the surroundings,thus w has a negative value.
C) ΔE = q + w (where q equals heat and w equals work) .
D) if a reaction occurs at constant volume,q = ΔE.
E) if a reaction occurs at constant pressure,w = ΔE.