For the subsequent reaction, forecast how the following changes would affect the equilibrium (shifts left, shifts right, or no change), as well as explain why.
N2O (g) + NO2 <---> 3NO(g) ΔHrxn =155.7 kJ/mol rxn
a) Adding some N2O gas
b) Increasing the volume of the container
c) Adding some helium
d) Increasing the temperature