SOLVE ALL PARTS A-D Gold, one of the most sought-after metals in the world, has a density of 19.3 g/cm3, a melting point of 1064 ∘C, and a specific heat of 0.129 J/g ∘C. A gold nugget found in Alaska in 1998 weighed 16.37 lb. A kilogram of 7.44
Part A: What is the melting point of gold in degrees Fahrenheit?

Part B: What is the melting point of gold in kelvins?

Part C: How many kilocalories are required to raise the temperature of the nugget from 490. ∘C to 1064 ∘C?

Part D: If the price of gold is $ 42.16 per gram, what is the nugget worth in dollars?

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole