If 3500 mL of nitrogen gas has a pressure of 27.3 kPa is found to contain 0.9 moles of the gas. What is the temperature of the gas?

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.

Hno3(aq) → h+(aq) + no3−(aq). picture ii best represents the strong acid hno3. strong acids are strong electrolytes

Nonmetals usually react by gaining electrons