One Mole of an Ideal Gas at 100 °C, with a Total

question 88

Multiple Choice

One mole of an ideal gas at 100 °C, with a total internal energy of 15,000 J, is mixed with two moles of another ideal gas at 200 °C, with a total internal energy of 30,000 J. What is the total internal energy of the mixture?

• A) 15,000 J
• B) 22,500 J
• C) 25,000 J
• D) 45,000 J
• E) 67,500 J

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