When a sample of a gas is heated in a sealed, rigid container from 200. k to 400. k, the pressure exerted by the gas is
(1) decreased by a factor of 2.
(2) increased by a factor of 2.
(3) decreased by a factor of 200.
(4) increased by a factor of 200.

(1) zmniejszyła się o czynnik 2. 
(2) zwiększona o współczynnik 2. 
(3) zmniejszona o współczynnik 200. 
(4) zwiększona o współczynnik 200.

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.

Idon't know hope someone you