This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Step 1: Calculate the mass of water. Given the volume of water and its density, we can find the mass. Mass of water = Volume of water × Density of water m = 450 cm^3 × 1 g/cm^3 = 450 g Convert the mass from grams to kilograms: m = 450 g = 0.450 kg Step 2: Calculate the change in temperature of the water. T = Final temperature - Initial temperature T = 46.5^ C - 25^ C = 21.5^ C Since a change of 1^ C is equivalent to a change of 1 K, T = 21.5 K Step 3: Calculate the heat evolved using the formula Q = mc T. Given specific heat capacity of water c = 4.2 kJ/kg K. Q = m × c × T Q = 0.450 kg × 4.2 kJ/kg K × 21.5 K Q = 19.35 kJ × 21.5 Q = 407.025 kJ The heat evolved during the experiment is 407.025 kJ. That's 2 down. 3 left today — send the next one.