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Nitric oxide (NO) can be formed from nitrogen, hydrogen and oxygen in two steps. In the first step, nitrogen and hydrogen react to form ammonia:
N2(g) + 3H2(g) → 2NH3(g) =ΔH-92.kJ
In the second step, ammonia and oxygen react to form nitric oxide and water:
4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) =ΔH-905.kJ
Calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions.
Round your answer to the nearest kJ.
Heat leaks into the interior compartment of a refrigerator at a rate of 100 cal/s. if the air outside is 30 degC, how many watts of electricity are needed to keep the interior at 4 degC? assume an ideal, reversible refrigerator.
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If 3.00 moles of ZnS are combined with 4.00 moles of O2, how many moles of ZnO can be produced?
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What would be the osmotic pressure, in atm, produced by 0.30 M solution of potassium chloride (KCL) at 25 C? (R = 0.0821 L atm mol^-1) A) 14.68, B) 7.34, C) 3.67, D) 0.615, E) 0.131
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