Question
(iv) The iron block had a mass of 2 kg. Calculate the energy transferred by the heater to increase the temperature of the iron block by 5^circ C The specific heat capacity of fron is 4500times 10^circ C about Energy transforred=
Answer
4
(192 Votes)
Isla
Expert · Tutor for 3 years
Answer
Working out step 4 as discussed in the explanation, the calculation becomes:Q = 2kg * 450 J/kg°C * 5°C = 4500 JoulesThus, to increase the temperature of the lion block by 5°C, energy transferred by the heater to the block should be approximately 4500 Joules.Due to everyday immersion or usage in reality, a few J less or more might suffice but under theoretical and precise conditions the result should amount to the stated answer.
Explanation
## Step 1 : Identifying the Given ParametersWe have given the mass of the lion block (m) as 2kg, the specific heat capacity of iron (c) as 450 J/kg°C, and the change in temperature (Δt) is 5°C.## Step 2 : Employing the FormulaThe energy required to change the temperature of an object can be calculated using the formula: ### Q = mcΔtWhich comes from the physics concept of thermodynamics. Q here refers to the energy transferred (in Joule)## Step 3 : SubstitutionWe put the known numbers into the equation in their respective places.## Step 4 : Mental or Calculated ComputationCarryout out the multiplication operation to find the final solution for the problem at hand.## Step 5 : Calculation VerificationWe verify our operations and calculations. A proper method to do this would be doing the computation on paper, then utilizing our mental calculation and lastly using analysis plugin to ensure that each computation give similar result.