A sample of NI3 is contained in a piston and cylinder.The samples rapidly decomposes to form nitrogen gas and iodine gas,and releases 3.30 kJ of heat and does 950 J of work.What is ∆E?

Question

Quizplus · Accepted Answer

The change in internal energy (∆E) is calculated using the formula ∆E = q + w, where q is the heat exchanged and w is the work done. Here, q = -3300 J (since heat is released) and w = -950 J (since work is done by the system). Thus, ∆E = -3300 J - 950 J = -4250 J.

A Sample of NI3 Is Contained in a Piston and Cylinder.The