Question

6) A helium gas containing 10^26 He atoms has a pressure of 10.0 atm at a volume of 1.00 m^3.
a) What is its temperature?
b) If an isothermal process expands the gas to 3.00 m^3, what is then the pressure?
c) Would heat have to be added or removed in order to do this?
d) If the expansion was instead adiabatic, would the work needed be smaller or larger? why?

7) A 1.5 kg mass is hanging from a spring with k=60.0 N/m. What is the frequency and period of the 
oscillations if you pull the mass down a little and then release it?

Answer 1

please post other question separately