Suppose the temperature of an object is raised from 100°C to 200°C by heating it with a Bunsen burner. Select all true statements from the following. O The average molecular kinetic energy will increase. O The chemical potential energy will decrease. O The number of slow-moving molecules will increase. O The total kinetic energy of all the molecules will increase. O The number of fast-moving molecules will increase. eTextbook and Media Attempts: 0 of 15 used Submit Answer Save for Later

Peanut Marshmallow Mass of Water  50g  50g Initial Mass of Food Sample and Paper Clip   10.42 g  14.44 g Change in Water Temperature (°C)  58.5   20.7 Final Mass of Food Sample and Paper Clip After Burning   9.02 g  13.68  g     Determine the number of kilocalories (food Calories) released by the burning food sample (1 kilocalorie, or Calorie = 1,000 calories).   Q = ____________ kilocalories (food Calories)  peanut   Q = ____________ kilocalories (food Calories) marshmallow

The specific heat capacity of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature of of 91 g of lead from 22°C to 37°C? 2.0 -180 180 -0.13 0.13 Equal masses of gold, lead, copper, and aluminum, all starting 20°C, all absorb the same quantity of heat energy. Which metal sample will have the greatest final temperature? Hint: I would need to reference Table 5.1 in the text book to answer this one. = 2 3 2 Al Au Cu --D-O Adding 2050 J of heat energy to a 580. gram chunk of an unidentified substance caused its temperature to increase by 25.0°C. What is the specific heat of the substance? 7.07 J/g °C) 0.141 J/g °C) -7.07 J/g °C)

Mass of empty Calorimeter is 7.73g, mass of calorimeter + water is 46.875g, mass of water is 39.145g, mass of metal is 6.354g, initial temperature of metal is 100 degrees Celsius, final temperature of calorimeter is 21.5 degree Celsius, CALCULATE  T(T-Final - T-Initial).