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Calculating Specific Heat Extra Practice Worksheet Q = mc∆T, where Q = heat energy, m = mass, and ∆T = change in temp. Remember, ∆T = (T final – T initial). Show all work and proper units. 1. A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat ...
Specific Heat Worksheet. DIRECTIONS: Use q = (m)(ΔT)(Cp) to solve the following problems. Show all work and units. 1. A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron. 2.
1. What does it mean if water has a higher specific heat capacity than oil? It requires more energy to raise its temperature by the same amount. 2. What is the difference between thermal energy and temperature? Temperature is a measure of the average kinetic energy of the molecules present. Thermal
2. A steel drum of mass 20kg contains 30kg of water. Calculate the energy required to raise the temperature of both by 10ºC. ΔE = m x c x Δθ. Energy change for steel drum. ΔE = 20 x 425 x 10 = 85,000J. Energy change for water. ΔE = 30 x 4200 x 10 = 1,260,000J. Total energy is found by adding these together.
Worksheet- Calculations involving Specific Heat. 1. For q= m c Δ T : identify each variables by name & the units associated with it. 2. Heat is not the same as temperature, yet they are related. Explain how they differ from each other. a.
Formula Q = mc T, where Q is heat in joules, c is specific heat capacity in J/g C, m is the mass in grams, and delta T is the change in temperature in C. For #1-4 circle the variables it gives you and underline what you are trying to find.
Specific Heat and Heat Capacity Worksheet. 1. The temperature of 335 g of water changed from 24.5oC to 26.4oC. How much heat did this sample absorb? c for water = 4.18 J/goC (ans. 2.66 kJ) 2. How much heat in kilojoules has to be removed from 225g of water to lower its temperature from 25.0oC to 10.0oC? (ans. –14.1 kJ) 3.