A Rigid Container Is Filled with 4 $18 ^ { \circ } \mathrm { C }$

question 47

Multiple Choice

A rigid container is filled with 4.0 mol of air with C_V = 2.5R. How much does the internal (thermal) energy of the air change if its temperature rises from $18 ^ { \circ } \mathrm { C }$ to $448 ^ { \circ } \mathrm { C } \text { ? }$ (R = 8.31 J/mol ? K)

• A)35,800 J
• B)430 J
• C)3580 J
• D)8940 J

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