Question

10. From the interaction between 6.2 g of phosphorus and excess of oxygen 150 kJ of heat is released. What's the standard enthalpy of forming (AlP29a) for phosphorus axide (P2OS(solid)? 1) -1500 kJ/mole 2) +150 kJ/mole 3) +1500 kJ/mole -150 kJ/mole 4) Japus 46 AM O 11/21/201 SONY WEB

Answer 1

du) males of Pheaphoress = mass 4 - mod) molan mass - 6025 = 0.206ml Rxn & 2P 2 (S) +50₂ (9) PROS applied POAC Rule males of P Os - moles of ? cofficient officient moles of P2Os & Noo 0.206 mol moles of P Og = 0.103mal Let stondere Enthalpy Change for Imole hos shiven do moles of B05 Xorigin = - energy Melosed. 0.103mol x Algan = - 150 kJ olign=-1456.3 kJ/mal 3 kJ/mal aus UUUUUUU g) it 06 20 then, Ron can takeplace DG = = TDS co (face Rxn Con Ah-TASCO takeplace DHCTOS because on so Thon

it as)o so (because question needs als <T eco at high Temſuatwee Ron can take place. Ausz Rym can take place at high temp if as so 0555EEEETTELEMALLIT mars of fate 83% of 10g butter = 83X109 - 8.39 100 - mals of protein = 19. of log = 180g = 0.14 mali of Cartohydate z 11, ofogyoga Wolf heat gained by log better = massof fut y Caloufë vaheed het + mass of proteincalouífic Valle + matrof Carb xcoloratif = 8.38 38.8 kg/g + 001X17. | k7 +001976/48 = 325046 KJ Calorific value for for = heatgain 325 46 ks = 32.5k mass of praten log Contion 4 I 8