What is the internal energy of 10 moles of a monatomic gas at 27 degrees Celsius.
| January 7, 2021 | education
Initial data: ν (number of moles of gas) = 5 mol; Т (absolute gas temperature) = 27 ºС = 300 К; monoatomic gas.
Constants: R (universal gas constant) = 8.31 J / (mol * K)); i (the number of degrees of freedom for a monatomic gas) = 3 ;.
We calculate the internal energy of the gas using the formula: U = 0.5 * i * ν * R * T.
Let’s perform the calculation: U = 0.5 * 3 * 10 * 8.31 * 300 = 37 395 J.
Answer: The internal energy of 10 mol of a monatomic gas is 37 395 J.
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