A sealed double-glazed window pane contains 120 g of argon gas, which behaves as an ideal monatomic gas. The temperature of the gas is 7.0 ∘C7.0 \text{ }^\circ\text{C}7.0 ∘C.
What is the total internal energy of the argon gas in the window pane?
(Molar mass of argon = 40 g mol-1)
5.80×10−21 J5.80 \times 10^{-21} \text{ J}5.80×10−21 J
2.62×102 J2.62 \times 10^2 \text{ J}2.62×102 J
6.98×103 J6.98 \times 10^3 \text{ J}6.98×103 J
1.05×104 J1.05 \times 10^4 \text{ J}1.05×104 J
