Calculating DeltaE for a Gas Expansion

[liftedrifter]

Homework Statement

Calculate DeltaE of a gas for a process in which the gas absorbs 42J of heat and does 14J of work on the surroundings. (ie the gas expands)

Homework Equations

DeltaH=DeltaE-Q

The Attempt at a Solution

42=deltaE-14

DeltaE=+28J

This is one of the last problems on my chem review and it just seems too easy. If anyone could verify my process that would be great.

 

[rock.freak667]

The Attempt at a Solution

42=deltaE-14

DeltaE=+28J

This is one of the last problems on my chem review and it just seems too easy. If anyone could verify my process that would be great.

wouldn't then ΔE=42+14 ?