A 20.0 L sample of gas from Mount Kilimanjaro was collected at 10.0 °C and has a pressure of 608 mmHg. How many moles of gas does this sample contain? Give the numerical answer with the correct number of significant figures (sig figs).

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.

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