1) The kinetic energy of a 103 g golf ball traveling at 48.0 m/s is A) 11.9 B) 2
ID: 875240 • Letter: 1
Question
1) The kinetic energy of a 103 g golf ball traveling at 48.0 m/s is A) 11.9 B) 23.7 C) 66 D) 1.3 x 102 of 81.9 km/hr is D778 C 6.00 2) The kinetic energy of a 23.2-g object moving at a speed of 81.9 km/hr is A) 1900 B) 145 D) 77.8 3) The AE of a system that absorbs 12.4J of heat and does 4.2 J of work on the surroundings is A) 4.2 B) 8.2 C) 12.4 D) 16.6 4) The change in the internal energy of a system that absorbs 2,500 J of heat and that does 7,655 J of work on the surroundings is A) 10,155 B)-10,155 5,155 D)-5,155 5) The value ofAH' for the reaction below is-126 kJ. kj are released when 2.00 mol of NaOH is formed in the reaction? 2 Na202 (s) + 2H20 (l) 4 NaOH (s) + O2 (g) A) 252 B) 63 7.8 D) 3.9 6) The value of AHo for the reaction below is -6535 kJ. kJ of heat are released in the combustion of 16.0 g of C6H6 1)? 2C6H6 (l) + 1502 (g) 12 CO2 (g) + 6H20 (l) A) 670 B) 2.68 x 103 C) -6535 D) 1.34 x 103 7) The value of AH° for the reaction below is -336 kJ. Calculate the heat (k) released to the low is -336 kJ. Calculate the heat (k) released to the surroundings when 23.0 g of HCl is formed. CH4 (g) + 3 Cl2 (g) CHCl3 (l) + 3 HCI (g) A) 177 B)-336 C) 211 D) 70.7Explanation / Answer
Given : Mass of golf ball = 10.3 g , speed is 48.0 m/s
We know KE =
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