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1) The kinetic energy of a 23.2-g object moving at a speed of 81.9 km/hr is. A) 1900 B) 77.8 C) 145 D) 1.43 x 10-3 E) 6.00 2) The specific heat capacity of lead is 0.13 J/g-K. How much heat (in ) is required to raise the temperature of 15 g of lead from 22 °C to 37 °C? A) 2.0 J B) -0.13 J C) 5.8 x 10-4J D) 29 J E) 0.13 J 3) Given the following reactions N2 (g) + 2O3 (g) → 2NO3 (g) ΔH-66.4 kJ 2NO (g) +02 (g)→ 2NO3 (g) AH--1 142 kj the enthalpy of the reaction of the nitrogen to produce nitric oxide N2 (g) + O2 (g) → 2NO (g) kJ. is A) 180.6 B)-47.8 C) 47.8 D) 90.3 E)-180.6
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