A question from physical chemistry in the entrance examination for chemical engineering
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1. A rigidly sealed container contains 1 mol of a monatomic ideal gas. At 25°C, after the system undergoes a certain process, ΔS = 1.0 J·K⁻¹. What is the change in ΔU of the system? Please provide a detailed solution from an expert
ds=&Q/T, Q=T*△S=298*1=298. For a rigid container, W=0; thus △U=Q+W=Q=298
Thank you, but the answer given is 1000, so I’m confused