What is the formula for calculating the heat energy required to change the tempe
Practice Questions
Q1
What is the formula for calculating the heat energy required to change the temperature of a substance? (2020)
Q = mcΔT
Q = mL
Q = mgh
Q = PV
Questions & Step-by-Step Solutions
What is the formula for calculating the heat energy required to change the temperature of a substance? (2020)
Step 1: Identify the mass (m) of the substance you want to heat or cool. This is usually measured in grams (g).
Step 2: Find the specific heat capacity (c) of the substance. This value tells you how much heat energy is needed to change the temperature of 1 gram of the substance by 1 degree Celsius (°C).
Step 3: Determine the initial and final temperatures of the substance to find the change in temperature (ΔT). Calculate ΔT by subtracting the initial temperature from the final temperature (ΔT = final temperature - initial temperature).
Step 4: Plug the values of mass (m), specific heat capacity (c), and change in temperature (ΔT) into the formula Q = mcΔT.
Step 5: Calculate Q to find the total heat energy required to change the temperature of the substance.
