Answer to Question #51930 in Field Theory for vi

Question

A solid X is in thermal equilibrium with a solid Y, which is at the same temperature as a third solid Z. The three bodies are of different materials and masses. Which one of the following statements is certainly correct? of 164.9J/s, calculate the the thermal conductivity of aluminum
X and Y have the same heat capacity
X and Y have the same internal energy
It is not necessary that Y should be in thermal equilibrium with Z
There is no net transfer of energy if X is placed in thermal contact with Z
14 A hot water tank of heat capacity 5000 JK-1 contains 10 kg of water at 25 °C. What is the time taken to raise the temperature of the water to 45 °C using a heater coil of power of 3.0 kW, given that the specific heat capacity of water is 4200 Jkg-1 K-1?
61 s
280 s
310 s
610 s
15 A solid object M is made of a material with a specific capacity c and a specific latent heat of fusion L.The object is heated up at a constant rate P. Its initial temperature is below its melting point by ΔT. The time for the object to be