What is the internal energy of helium with a mass of 4 g, if its absolute temperature is 127 K?

The internal energy of helium can be calculated by the formula:
U = 3/2 * (m / M) * R * T, where m is the mass of helium (m = 4 g), M is the molar mass of helium (M = 4 g / mol, monoatomic gas), R is the universal gas constant (R = 8.31 J / (mol * K)), T is the absolute temperature of helium (T = 127 K).
Let’s calculate the internal energy of helium:
U = 3/2 * (m / M) * R * T = U = 3/2 * (4/4) * 8.31 * 127 = 1583 J.
Answer: The internal energy of helium is 1583 J.