Calculate ΔE: Endo- or Exothermic? Solving Problems with ΔE Equation

[bigzabuda]

The problems asks,
Calculate ΔE, and determine whether the process is endothermic or exothermic for the following cases:(A) A system absorbs 105 kJ of heat from its surroundings while doing 29 Kj of work on the surrounding;(B) q = 1.50 kJ and w = -657j; (C) the system releases 57.5 kJ of heat while doing 22.5 kJ of work on the surrounding.

I am confused with the question, I am pretty sure the equation is ΔE = q+pΔv

im not sure what to do can anyone help me, thanks.

 

[magwas]

It is easier than that.
You have two values:
- Absorbed heat. It is an amount of energy which goes into the system
- Work done by the system. It is an amount of energy which goes out of the system.

Now a system is exothermic if it releases more energy than it absorbs, and endothermic if the other way around.