If the reaction: h2(g) + i2(g) 2hi(g) has a kc = 54.8 at 450°c, then what is the free energy of the reaction? (the value of the gas constant, r, is 0.008314 kj/k •mol). -15.0 kj/mol -24.1 kj/mol -10.5 kj/mol -6.5 kj/mol

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line