1)

35 kg of aluminum, at a temperature of 143 C is dropped into 29.337 litres of water at 7 %C. As soon as thermal equilibrium is achieved, the aluminum is removed and a piece of silver, at a temperature of 143 .C, is placed in the water. If the final temperature of the water is 59 "C, what is the mass of the second piece of metal in kg? Ignore heat losses to atmosphere. Number kg

2)

The data from a calorimeter test, involving alan copper calorimeter, is as follows:

mass of the tested material = 3,269 g

mass of calorimeter = 0.71 kg

mass of water = 3 kg initial temperature of tested material = 82 degrees C

initial temperature of calorimeter = 15 degrees temperature change of the calorimeter = 7.1 degrees C

Calculate the specific heat of the tested material.

3)

SPECIFIC HEAT and LINEAR EXPANSION OF SOLIDS Mean Coefficient Mean Coefficient Specific Heat of Specific Heat of between 0"C Linear Expansion between 0 C Linear Expansion Solid and 100 C between O'C and Solid and 100 C between O C and kJ/kgK or 100 C kJ/kgK or 100 C kJ/kg C (Multiply by 10-6) kJ/kg C (Multiply by 10-6) Aluminum 0.909 23.8 Iron (cast) 0.544 10.4 Antimony 0.209 17.5 Iron (wrought) 0.465 12.0 Bismuth 0.125 12.4 Lead 0.131 29.0 Brass 0.383 18.4 Nickel 0.452 13.0 Carbon 0.795 7.9 Platinum 0.134 8.6 Cobalt 0.402 12.3 Silicon 0.74 1 7.8 Copper 0.388 16.5 Silver 0.235 19.5 Glass 0.896 9.0 Steel (mild) 0.494 12.0 Gold 0.130 14.2 Tin 0.230 26.7 Ice 2.135 50.4 Zinc 0.389 16.5 (between -20 c and 0 C) SPECIFIC HEAT and VOLUME EXPANSION FOR LIQUIDS Specific Heat Coefficient of Specific Heat Coefficient of Liquid (at 20. C) Volume Expansion Liquid (at 20 ) Volume Expansion kJ/kgK or kJ/kgo C (Multiply by 10-4) kJ/kgK or kJ/kgo C (Multiply by 10-4) Alcohol (ethyl) 2.470 11.0 Olive Oil 1.633 Ammonia 0.473 Petroleum 2.135 Benzine 1.738 12.4 Gasoline 2.093 12.0 Carbon Dioxide 3.643 1.82 Turpentine 1.800 9.4 Mercury 0.139 1.80 Water 4.183 3.7A copper kettle with a mass of 0.5 kg contains 6.8 kg of olive oil. Find the water equivalent of the combined masses of kettle and contents (Select all necessary constants from the HANDBOOK OF FORMULAE AND PHYSICAL CONSTANTS) Find the water equivalent = kg Number