Specific Heat Capacity- The amount of energy required to raise the temperature of __________ gram of a substance by ____________ Celsius degree. Practice: How much energy would it require to raise 1g of solid water by 1 C? How much energy would it require to raise 1g of iron 1 ◦C? Which substance requires the most energy to raise 1g of substance by ◦C? Thermochemistry for pure substance in single phase of matter we can calculate how much Energy needed/used using the following equation: Q = mCΔT Q = ___________________ in units of ____________________ m = ___________________ in units of ____________________ C = ___________________ in units of ____________________ = ___________________ in units of ____________________ ΔT Tf Ti ΔT= – When energy is released, Q _________ 0 When energy is absorbed, Q ________ 0 Practice: Determine the amount of energy (heat) in joules required to raise the temperature of 7.40g water from 29.0 to 46.0 (the specific heat of water is 4.184 J/g ◦C ◦C? ◦C) Calculate the energy required to heat 454g of water from 98.6 to 5.4 the specific ◦C ◦C, heat of water is 4.184 J/g◦C. A 1.6g sample of an unknown metal requires 5.8J of energy to change its temperature from 23 to 41 What is the specific heat of the unknown metal? ◦C ◦C.
Specific Heat Capacity- The amount of energy required to raise the temperature of __________ gram of a substance by ____________ Celsius degree. Practice: How much energy would it require to raise 1g of solid water by 1 C? How much energy would it require to raise 1g of iron 1 ◦C? Which substance requires the most energy to raise 1g of substance by ◦C? Thermochemistry for pure substance in single phase of matter we can calculate how much Energy needed/used using the following equation: Q = mCΔT Q = ___________________ in units of ____________________ m = ___________________ in units of ____________________ C = ___________________ in units of ____________________ ΔT = ___________________ in units of ____________________ ΔT= Tf – Ti When energy is released, Q _________ 0 When energy is absorbed, Q ________ 0 Practice: Determine the amount of energy (heat) in joules required to raise the temperature of 7.40g water from 29.0 ◦C to 46.0 ◦C? (the specific heat of water is 4.184 J/g ◦C) Calculate the energy required to heat 454g of water from 98.6 ◦C to 5.4 ◦C, the specific heat of water is 4.184 J/g◦C. A 1.6g sample of an unknown metal requires 5.8J of energy to change its temperature from 23 ◦C to 41 ◦C. What is the specific heat of the unknown metal?
unit-13-guided-notes-on-q.docx