A piece of glass has a temperature of 81.0 °C. Liquid that has a temperature of 43.0 °C is poured over the glass, completely covering it, and the temperature at equilibrium is 51.0 °C. The mass of the glass and the liquid is the same. Ignoring the container that holds the glass and liquid and assuming that the heat lost to or gained from the surroundings is negligible, determine the specific heat capacity of the liquid.   number units

A piece of glass has a temperature of 84.4 °C. Liquid that has a temperature of 37.2 °C is poured over the glass, completely covering it, and the temperature at equilibrium is 52.6 °C. The mass of the glass and the liquid is the same. Ignoring the container that holds the glass and liquid and assuming that the heat lost to or gained from the surroundings is negligible, determine the specific heat capacity of the liquid. Answer to 4 sig figs. make sure everything gets converted to standard units

A 0.825 kg block of iron, with an average specific heat of 5.60 × 102 J/kg·K, is initially at a temperature of 254.0◦C. The block of iron is placed in a calorimeter with 16.4 g of water at 12.2◦C. What is the final thermal equilibrium temperature? If the answer if 100.0◦C, how much water is still in liquid form? Note: Treat the mass and heat capacity of the calorimeter as neglible.

A closed box is filled with dry ice at a temperature of -83.9 °C, while the outside temperature is 26.9 °C. The box is cubical, measuring 0.350 m on a side, and the thickness of the walls is 3.80 x 10-2 m. In one day, 3.35 x 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made. Number 30251.3 Units

The temperature of a aluminum bar rises by 10.0°C when it absorbs 4.73 kJ of energy by heat. The mass of the bar is 525 g. Determine the specific heat of aluminum from these data.

Problem 21. Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its temperature and that of its sur- roundings. Suppose that the temperature of a cup of coffee obeys Newton's law of cooling. The coffee has a temperature of 80°C when freshly poured, and 1 min later has cooled to 70°C, when the temperature outdoors is 0°C. (a) Write an initial value problem for this model. (b) Determine the time when the coffee reaches a temperature of 40°C. (Note: Begin the solution by stating your notation).

a 10.0 g ice cube in 40.0 g of water at 30.0 c. The system is in a container with negligible heat capacity and is insulated from the surroundings. a) Find the equilibrium temperature and describe the contents in terms of the phase. b) If instead two ice cubes are added, find the equilibrium temperature and describe the contents in terms of the phase.

In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 14.0 °C. The temperature at the inside surface of the wall is 21.4 °C. The wall is 0.12 m thick and has an area of 7.7 m2. Assume that one kilowatt hour of electrical energy costs $0.10. How many hours are required for one dollar's worth of energy to be conducted through the wall? Number Units the tolerance is +/-2%

Two cylindrical rods have the same mass. One is made of silver (density = 10 500 kg/m³), and one is made of iron (density = 7860 kg/m³). Both rods conduct the same amount of heat per second when the same temperature difference is maintained across their ends. What is the ratio (silver-to-iron) of (a) the lengths and (b) the radii of these rods? Give your answers as numbers with no units. (a) Number i (b) Number Units Units

You take an aluminum cylinder with a mass m = (315± 2) g out of a furnace at temperature T = (250 ± 5)C °and place it in a large bath of cool water. The final 1 temperature of the cylinder and water is T2 = (29 ±1) C° . How much heat flows from the cylinder to the water, and what are the absolute and relative errors in the heat transfer out of the cylinder? The heat transfer is given by Q = mc T ∆where ∆T is the change in temperature and c = (0.215± 0.005)cal/g C is ⋅t°he specific heat of aluminum.