Question

What is the internal energy (to the nearest joule) of 10 moles of Oxygen at 100 K?

(Given, the universal gas constant = 8.315 J/(mol.k))

Answer 1

U = 12,205.5 J

Step-by-step explanation:

In order to calculate the internal energy of an ideal gas, you take into account the following formula:

`U=(3)/(2)nRT` (1)

U: internal energy

R: ideal gas constant = 8.135 J(mol.K)

n: number of moles = 10 mol

T: temperature of the gas = 100K

You replace the values of the parameters in the equation (1):

`U=(3)/(2)(10mol)(8.135(J)/(mol.K))(100K)=12,205.5J`

The total internal energy of 10 mol of Oxygen at 100K is 12,205.5 J