Atank contains helium gas at 1.50 atm. what is the pressure of the gas in mmhg?

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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The correct answer would be b) volume versus temperature, because they are also directly proportional.

I’m not sure about this question