1-Which of the following underlined items is not an intensive property (a) A che

Question

1-Which of the following underlined items is not an intensive property (a) A chemical reaction reqyuires 3.00g of oxygen (b) Solid copper hydroxide is blue colored (c) the density of helium at 25degree celsius is 1.64X 10-4b/cm3 (d) the melting poit of aluminun metal is 933k 2- The diameter of the nucleus of an atom is approximately 1X10-15 meters if 1 nm is equal 11 angstroms what is the diameter of the nucleus in Angstroms? (a) 1x10-23A (b) 1X 10-8A (c) 1X10-7A (d) 1X10-5A (3) A gold ingot weight 5.50lbs if the density of gold is 19.31g/cm3 and the length and of the ingot are 12.0 and 3.00cm respectively what is the hight of the ingot (a)6.50X 10-3 cm 9b) 3.59cm (c) 11.2cm (c) 1.34X10^3cm

Explanation / Answer

Mass mm = 3.03 kg of an unknown metal is at an initial temperature of Tm = 14.6o C. Now mw = 1.19 kg of water are heated to Tw = 95.6o C and poured over the metal. If thermal equilibrium is reached at a temperature of Tf = 48.2o C, find cm, the specific heat of the unknown metal.

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