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?

The thermal energy of 0.700 mol of a substance is increased by 0.900J. A. What is the temperature change if the system is a monatomic gas? (Hint: answer is not 103.09 K) B. What is the temperature change if the system is a diatomic gas? (Hint: answer is not 51.5 K) C. What is the temperature change if the system is a solid? (Hint: answer is not 9384.8 K)

Suppose you want to raise the temperature of a 0.18-kg piece of ice from -20.0°C to 130°C. The heat of fusion is Lf = 334 kJ/kg, and the heat of vaporization is Lv = 2256 kJ/kg. In this problem, take 1520 J/kg⋅°C as the specific heat of steam, and 2090 J/kg⋅°C as the specific heat of ice.  a.)   How much heat, in kilocalories, must be transferred for this to happen, including the energy needed for phase changes?    b.)  How much time, in seconds, is required to do this, assuming a constant 20.0 kJ/s rate of heat transfer?

6. A cylinder contains 261 L of hydrogen gas (H2) at 0.0°C and a pressure of 10.0 atm. How much energy is required to raise the temperature of this gas to 16.7°C? Universal gas constant is 8.314 J/(mol·K). For H2 ,Cv = 20.4 J/(mol·K). in kJ

A rectangular window in a home has a length of 1.5 m and a height of 0.80 m. If the window allows heat to escape from the  home at a rate of 2,000 watts, how thick must the window be if the inside temperature of the home is 220 C and the outside temperature is 3.00C? (Assume that the coefficient of thermal conduction of glass is 0.80 W/mK.)   a. 7.1 mm   b. 124 mm   c. 9.1 mm   d. 8.1 mm   e. 11 mm

An aluminum cup with mass 0.3 kg holds 0.35 kg of water. Both the cup and the water have a temperature of 20.°C. If a 0.75-kg piece of copper at 85.°C is added to the cup, what is the final equilibrium temperature in °C? You may assume that the cup, water, and copper are well insulated from anything else. (What can I do to solve this equation?)

21.0 g of copper pellets are removed from a 300C oven and immediately dropped into 70.0 mL of water at 17.0C in an insulated cup. copper = 385 (J/kg K) water = 4190 (J/kg K) What will the new water temperature be? Express your answer with the appropriate units.

On a multi-layered square wall, the thermal resistance of the first layer is 0.005 ° C / W, the resistance of the second layer is 0.2 ° C / W, and the third layer is 0.1 ° C / W. The overall temperature gradient in the wall is multilayered from one side. to the other side is 60 ° C. a. Determine the heat flux through the walls. = Answer watts / m2. b. If the thermal resistance of the second layer is changed to 0.3 ° C / W, what is the effect in% on heat flux, assuming the temperature gradient remains the same? = Answer Answer %.

A bolt hole in a brass plate has a diameter of1.21 cm at 19.62°C.  What is the diameter of the hole when the plate is heated to193.44°C?  (The coefficient of linear thermal expansion for brass is 19 × 10-6 /C°.) a. 0.0052581 b. 1.2140 c. 1.2103 d. 0.0069607

The height of the Eiffel tower is 324 m, and let's assume it's made completely of steel, which has a thermal coefficient of 1.20 × 10-5/°C. a. How much taller, in meters, does the Eiffel Tower become at the end of a day when the temperature has increased by 17.5°C?