A 4.0 g ice cube at -15 °C is in a rigid, sealed container from which all the air has been evacuated. Steam has cV = 1500 J/kg-K and cP = 1960 J/kg.K. How much heat is required to change this ice cube into steam at 160°C?
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- A person wants to cool down her bath water so she does so by adding 5.0 Kg of ice at 0°C to 75.0 Kg of water at 70°C. What would the final temperature of the water be ? Lf = 333 KJ/Kg & cH2O =4186 J/Kg°CQuestion 11 After some time, you pour 0.5 kg of milk, whose initial temperature was 5°C. What will be the final equilibrium temperature of this system? Let: 1.5 kg of coffee, originally at 90°C, is placed into a .3 kg aluminum cup. J Ccoffee = 4186 kg K J CAI = 500 kg K J CMilk = 3000 kg K Question 12 A solid steel sphere of radius 50 acts as a perfect radiator, calculate the amount of heat it will radiate after 1 min. cm is heated to 3000 K. If the sphereA 200cm3 glass flask is filled to the brim with mercury (βHg= 18 x 10-5 K-1) at 20°C. How much mercury overflows when the temperature of the system is raised to 100°C? The coefficient of linear expansion of the glass is 0.40 x 10-5 K-1 A. 2.2cm³ B. 2.7cm³ C. 2.9cm³ D. 2.5cm³
- A 50.0-g piece of brass (specific heat 380 J/kg K) is heated to 90.0° C and immersed in 100 g of water (specific heat 4184 J/kg K), initially at 15.0° C c. The well-insulated container is then sealed and allowed to reach thermal equilibrium. What is the final temperature of the system? 18.3° C 13.7° С 24.8° C 36.3° C 12.9° CTwo 39.5-g ice cubes initially at 0°C are added to 460 g of water at 22.0°C. Assuming this system is insulated and ignoring heat transfer with the glass, what is the equilibrium temperature of the mixture? °CA 0.0500-kg ice cube at −30.0°C is placed in 0.350 kg of 35.0°C water in a very well-insulated container. What is the final temperature in degrees Celsius?
- A 390-g metal container, insulated on the outside, holds 170.0 g of water in thermal equilibrium at 21.0°C. A 18.0-g ice cube, at -15.0°C, is dropped into the water, and when thermal equilibrium is reached the temperature is 12.0°C. Assume there is no heat exchange with the surroundings. The specific heat capacity of water is 4190 J/kg ∙ K, the specific heat capacity of ice is 2090 J/kg ∙ K and the heat of fusion is 3.34 × 105 J/kg. What is the specific heat capacity of the metal of the container?A 1.50-kg iron horseshoe initially at 650°C is dropped into a bucket containing 13.0 kg of water at 22.0°C. What is the final temperature of the water-horseshoe system? Ignore the heat capacity of the container and assume a negligible amount of water boils away. °C