What is the coefficient of volume expansion for a material that has a coefficient of linear expansion of 1.5x 10-5/C°. ? O a) 8.4 x 10-5/Co O b) 0.5x 10-5/C° O) 1.3x 10-5/Co d) 1.3 x 10-4/C° e) 4.5 x 10-5/C°

3 E 2. A concrete highway is built of slabs 19.0 m long (at 23 °C). How wide should the expansion cracks be (at 23 °C) between the slabs to prevent buckling if the annual extreme temperatures are -37 °C and 52 °C?(the coefficient of linear expansion of concrete is 1.20 x 10-5 °C-¹) meters D # L 835 ه R % F الله ساك 5 V B T G 6 MacBook Air --- B & 7 I 8 N FB 0 ا K M 2 هو

A quantity of mercury occupies 400.0 cm³ at 0°C. What volume will it occupy when heated to 50°C? Mercury has a volume expansion coefficient of 180 x 10-6 K-1. 450 cm3 401.8 cm3 O403.6 cm³ O409.7 cm3

5. Consider two unknown substances, substance A and substance B, which are placed in contact inside an open container. The container is in a VERY large room and the room is a very warm 40°C. Below are T Vs E Added plots for substance A (left) and substance B (right): T(°C) 80 60 40 20 0 -20 i Substance A 200 400 600 800 1000 1200 1400 E Added (J) T(°C) 80 60 40 20 0 -20 Substance B 200 400 600 800 1000 1200 1400 E Added (J) The initial state of substance A is labeled. In the final state, substance A and substance B are both in thermal equilibrium with the room. If substance A and substance B absorbed a combined total of 1700J in the form of heat what was the initial temperature and phase of substance B?

During an all-night cram session, a student heats up a 0.807 liter (0.807 x 10- 3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 15.5 °C, and the beaker is filled to the brim. A short time later when the student returns, the temperature has risen to 98.0 °C. The coefficient of volume expansion of coffee is the same as that of water. How much coffee (in cubic meters) has spilled out of the beaker?

2kg of ice at 0 degree celsius are placed in a closed glass beaker( k = 0.80W/m-c). The closed beaker is then placed in a 30 degree celsius room The surface area of the beaker is 5x10-3 m² and its walls are 0.005m thick. How much heat is required to melt the ice? How long does it take the ice to melt?

A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the balloon less dense then the surrounding air, the balloon is able to lift objects many times its own weight. A large hot air balloon has a maximum balloon volume of 2090 m3. a.  If the air temperature in the balloon is 54 °C, how much additional mass, in kilograms, can the balloon lift? Assume the molar mass of air is 28.97 g/mol, the air density is 1.20 kg/m3, and the air pressure is 1 atm.

At a temperature of 22.00°C the hole in a steel plate has a diameter of 1.040 cm. If a steel rod with a diameter of 1.049 cm has to just slip through this hole, to what temperature should the plate be heated? The coefficient of area expansion of steel is 24 ✕ 10−6/°C. ________________________ °C