To sterilize a 43-g43-g glass baby bottle, we must raise its temperature from 22.0∘C to 95.0∘C. How much heat, in joules, is required to be transferred to the bottle? the specific heat (c) of glass is 840 J/kg
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To sterilize a 43-g43-g glass baby bottle, we must raise its temperature from 22.0∘C to 95.0∘C.
How much heat, in joules, is required to be transferred to the bottle?
the specific heat (c) of glass is 840 J/kg
Step by step
Solved in 2 steps with 1 images
- At 25.0 m below the surface of the sea, where the temperature is 5.00C, a diver exhales an air bubble having a volume of 1.00 cm3. If the surface temperature of the sea is 20.0C, what is the volume of the bubble just before it breaks the surface?One way to cool a gas is to let it expand. When a certain gas under a pressure of 5.00 106 Ha at 25.0C is allowed to expand to 3.00 times its original volume, its final pressure is 1.07 106 Pa. (a) What is the initial temperature of the gas in Kelvin? (b) What is the final temperature of the system? (See Section 10.4.)A high-end gas stove usually has at least one burner rated at 14 000 Btu/h. (a) If you place a 0.25-kg aluminum pot containing 2.0 liters of water at 20.C on this burner, how long will it take to bring the water to a boil, assuming all the heat from the burner goes into the pot? (b) Once boiling begins how much time is required to boil all the water out of the pot?
- A thermos contains 172 g of coffee at 85 °C . To cool the coffee , you drop a 72.2 g ice cube into the thermos . The ice cube is initially at 0 degrees * C and melt completely . What is the final temperature of the coffee ? Treat the coffee as if it were water (specific heat of water is 4186 J/Kg ^ C and the latent heat of fusion of water is 33.5*10^ 4 /kg)0.35 kg of water ice at -3.1°C is placed in an aluminum mug that had been previously cooled to -59°C. After a long time, all of the water freezes and the temperature of the system equilibrates to -34°C. What is the mass of the aluminum mug? The specific heat of water ice is 2090 J/kg-K, the specific heat of liquid water is 4190 J/kg-K, and the specific heat of aluminum is 900 J/kg-K. The heat of fusion of water is 3.33×105 J/kg, and the heat of vaporization of water is 22.6×105 J/kg.A copper calorimeter whose mass is 250 g contains 700 g of water at 250C. When 25 g of a certain metal at 980C is immersed in the water, the resulting temperature is 300C. What is the specific heat of the metal? The specific heat of copper is 0.093 cal/g C0.
- A .20 kg ice cube at 0.0° C has sufficient heat added to it to cause total melting, and the resulting water is heated to 67.0°C. How much heat is added? (For water Lf= 334 kJ/kg and Ly= 2257 kJ/kg.) O 13,000 kJ O 56 kJ O 120 kJ O 80 kJThe specific heat of most solids is nearly constant over a wide temperature range. Not so for diamond. Between 200 K and 600 K, the specific heat of diamond is reasonably well described by c=2.8T−350J/kg⋅K, where T is in K. For gemstone diamonds, 1 carat = 200 mg. How much heat energy is needed to raise the temperature of a 2.5 carat diamond from -50∘C to 250 ∘C?A copper pipe absorbs 3600 joules of heat as the temperature changes from 53.5*C to 70.0*C. What is the mass of the pipe. Coppers specific 0.385 j(g•*C)
- Aluminum is often melted down for recycling purposes. Assuming 1 kg of aluminum is at 20 deg C (room temperature), what is the minimum amount of heat needed to melt it to a liquid? The specific heat capacity of aluminum is 899 J/kg°C, the melting point is 660°C, and the latent heat of fusion is 3.97 x 105 J/kg. 972,000 J571,000 J397,000 J500,000 J3.20 g of boiling water at 100.0°C was splashed onto a burn victim’s skin and cooled to 44.1°C on the 37.0°C skin. How much heat is given up by the water? Specific heat capacity of water is 4.186 J/(g·K). How much tissue mass, originally at 37.0°C, was involved in cooling the water? Specific heat of human tissue at 1.00 atm and 20.0°C is 3.50 J/(g·K).A. Before going in for an annual physical, a 70.0-kg person whose body temperature is 37.0∘C consumes an entire 0.355-liter can of a soft drink (which is mostly water) at 12.0∘C. B. What will be the person's body temperature Tfinal after equilibrium is attained? Ignore any heating by the person's metabolism. The specific heat capacity of a human body is 3480 J/kg⋅K. C. Is the change in the person's body temperature great enough to be measured by a medical thermometer? (A high-quality medical thermometer can measure temperature changes as small as 0.1∘C or less.) Yes or No?
