The specific heat capacity of silver is 0.24 J/°C .g. (a) Calculate the energy required to raise the temperature of 140.0 g Ag from 273 K to 305 K. (b) Calculate the energy required to raise the temperature of 1.0 mol Ag by 1.0°C (called the molar heat capacity of silver). O J/mol°C (c) It takes 1.35 kJ of energy to heat a sample of pure silver from 12.0°C to 15.3°C. Calculate the mass of the sample of silver. 9
The specific heat capacity of silver 0.24 J/g°C. It takes 1.25 kJ of energy to heat a sample of pure silver from 12.0°C to 15.2°C. Calculate the mass (g) of the sample.
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C? 2) A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C. What is the specific heat of the substance? 3) A 70.0-g piece of metal at 80.0 °C is placed...
An unknown metal has a mass of 32.6 g. When 983 J of heat are added to the sample, the sample temperature changes by 40.2°C. Calculate the specific heat of the unknown metal. Specific heat (J/g* C) Metal potassium 0.750 silver 0.240 lead 0.160 specific heat: J/(g C) barium 0.204 calcium 0.650 What is the possible identity of the metal based on the calcium 0.650 calculated specific heat? O potassium lead silver Ocalcium
3. The specific heat of methane gas is 2.20 J/g • °C. If the temperature of a sample of methane gas rises by 15 °C when 8.8 kJ of heat energy is added to the sample, what is the mass (in kg) of the sample? 4. It takes 0.805 kJ to raise the temperature of a 0.125 kg quantity of an unknown metal (gold, silver, or aluminum) from 25.00°C to 32.14°C. What is the specific heat of the metal (in...
How much heat is released when 150. g of iron cools from 525°C to 100°C? (Cp = 0.44 J/gºC) A 50.0 g block of glass (Cp = 0.50 J/gºC) absorbs 333 joules of heat energy. How much does the temperature of the glass rise? The temperature of a silver coin (Cp = 0.24 3/9°C) falls by 353 °C as it releases 5,550 Joules of heat. What is the mass of the coin 5.
What is the specific heat of a metal (in j/g degree C) which has a mass of 126.0 grams and requires 1000 joules of heat energy to increase its temperature from 25.0 degree C to 76.0 degree C?
400 J of heat is added to a system. If the change in internal energy of the system was 850 J, how much work was done on by the system? the inside a container absorbs 250 J of hea while 125 J of work is done on it and then does 70 J of its own work, by how much does the internal energy of the gas increase? 7.500 joules of heat is added to a system while it also...
Perd cific Zinc has a specific heat of 0.39 J/g °C while iron has a spe- cific heat of 0.45 J/g °C. If a 100-g sample of each metal is cooled from 100 °C to room temperature (25 °C), which one releases more heat energy? 50. Th deg ab 10 51. An engineer tests the thermal properties of a metal alloy. Using a 50.0-g sample, she finds that adding 485 J of heat energy to the alloy causes a temperature...
PART A It takes 47.0 J to raise the temperature of an 10.9 g piece of unknown metal from 13.0∘C to 24.8 ∘C. What is the specific heat for the metal?Express your answer with the appropriate units. PART B The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take to raise the temperature of 10.9 g of silver by 11.2 ∘C?Express your answer with the appropriate units. PART C What is the specific heat of...