The standard free energy of formation of nitric oxide, NO, at 1000.K (roughly the temperature in an automobile engine during ignition)is 77.7 kJ/mol. Calculate the equilibrium constant for the reaction N2 (g) + O2 (g) 2NO(g) At 1000.K.(R = 8.31 J/(K ∙ mol))
A)0.95
B)7.6 × 10-9
C)1.6 × 105
D)-15
E)8.7 × 10-5

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Give more examples of this type of heat transfer:

An unsaturated hydrocarbon is a hydrogen-carbon compound with a. a network solid structure b. single bonds c. single bonds in a branched-chain structure d. double or triple bonds