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

question 134

Multiple Choice

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?

• A) -953.3 J
• B) +953.3 J
• C) -4250 J
• D) -946.7 J
• E) +4250 J

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