what is the equation for calculating ÄE?
here is my info- q=-39kJ, w=88kJ
delta E = q + w
thank you
To calculate the change in internal energy (ΔE), you can use the first law of thermodynamics equation:
ΔE = q + w
where:
- ΔE represents the change in internal energy
- q represents the heat transferred to or from the system
- w represents the work done on or by the system
In your case, you have q = -39 kJ (negative because heat is being transferred out of the system) and w = 88 kJ.
Plugging these values into the equation:
ΔE = -39 kJ + 88 kJ
Calculating the sum:
ΔE = 49 kJ
Therefore, the change in internal energy (ΔE) is 49 kJ.