Question

An ideal gas occupies a volume of 1.87 cm3 at 15.7°C and a pressure of 101,325 Pa.
a) Determine the number of molecules of gas in the container.
Boltzmann’s constant is 1.38 x 10-23 m2kg/s2K
Answer:


b) Determine the total internal energy of the gas.

Answer 1

A. PV=nRT calculate number of moles, n. Multiply by avag number.

b.total internal energy for a MONOATOMIC gas is 3/2 nRT
for diatomic, you can use 5/2 nRT

Answer 2

I tried that and still was marked wrong