Answer:
14185.5J
Explanation:
Thermal energy can be calculated using the formula
Q = mcT where
Q is the amount of thermal energy in <em>J</em>
m is the mass in kg
c is the specific heat capacity in <em>J/kg/C</em>
T is the change in Temperature in <em>C</em>.
Hence by applying this formula, we get:
Q = (0.175)(4200)(24.3 - 5.00)
<u>Q = 14185.5 J</u>
Heat transferred - Work done = Internal Energy
Explanation:
- If there is more heat transfer than the work done, the energy difference is called internal energy
- The first law of thermodynamics equation is given as ΔU=Q−W where, ΔU = Internal energy; Q = Heat transfer; W = Work done
- Heat = transfer of thermal energy between two bodies at different temperatures
- Work = force used to transfer energy between a system and its surroundings
- The First Law of Thermodynamics states - energy can be converted from one form to another with the interaction of heat, work and internal energy
- Energy cannot be created nor destroyed
The amount of thermal energy required to convert 1.75 kg of solid copper at 1358 K to liquid at 1358 K is 360.5 KJ
Q = m *
Q = Thermal energy
m = Mass
= Latent heat of copper
m = 1.75 kg
= 206 KJ / kg
Q = 1.75 * 206
Q = 360.5 KJ
Thermal energy is a type of energy that is responsible for a system's temperature. The flow of thermal energy is called as heat.
Therefore, the amount of thermal energy required is 360.5 KJ
To know more about thermal energy
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