Question

These were the only equations provided, I have calculated Q and P but can't find a relationship between them relating to t. Appreciate the help!

5. You have 250 g of water in an aluminium calorimeter with a mass of 125 g. How long will it take to increase the temperature of the water and calorimeter from 20 oC to 37 °C if the system is heated by a resistive heating element with 8 V across the resistor and 0.75 A flowing through the resistor? where Q heat, m mass, c specific heat, and ATchange in temperature In this experiment, both the water and the aluminium calorimetry cup increase in temperature when heated. The water and cup have different masses and specific heat capacities, but we assume that they both have the same change in temperature because they are in thermal contact and we allow the system to reach thermal equilibriunm The total amount of heat absorbed by the system can be determined by: cup cuP The electrical power supplied is determined by the voltage produced by the generator and the resulting current that is produced: P=VI voltage across the resistor, Icurrent through the resistor, and P where V power. Power is the rate at which energy, E, is generated or used: Power- energy/time Thus energy can be calculated by: E P Or, in a case where the power is not constant, energy is the area under a power vs. time graph

Answer 1

0.25 x 418°C (37-го) +0,125 x 902x (33-4) = 17110465-t 112.75] ら4.7似nin