A sample of silver at 10°C is heated to 90°C when 1 kcal of heat is added.  What is the mass of the silver?  (csilver = 0.056 cal/g•°C)   A 1 kg glass bowl at 30°C is placed in a freezer.  How much heat must the freezer remove from the bowl to take its temperature to 0°C?  (cglass = 0.2cal/g•°C)

Q: The heating element in an electric kettle is rated as 2.0 kW. If the water in the kettle is at 100.0…

A: The expression for the power,

Q: A rectangular window that is 1.20m wide and 1.8m high has a thickness of 6.2 mm and thermal…

A:

Q: A 5 gram lead bullet traveling in 20°C air at 300 m/s strikes a flat steel plate and stops. What is…

A:

Q: How much heat must be added to a 2 kg block of ice at -11°C to change it to water at 24°C? A) 230…

A: Heat added is

Q: Calculate the total heat required to convert 100 g ice at-15°C to steam at 120 "C. (Specific heat of…

A:

Q: A.20 kg ice cube at 0.0° C has sufficient heat added to it to cause total melting, and the resulting…

A: The heat energy needed to melt the ice is Q1=mLf

Q: A window of a car is found to be covered with 0.9 cm of ice. If the area of the window is 1 m2, and…

A:

Q: ce at 0.0°C is mixed with 8.30 × 102 mL of water at 25.0°C. How much ice must melt to lower the…

A: Solution: given that ice temperature Tice,i=0 degree C The volume of water V=8.33x102 mL water…

Q: If you add 700 kJ of heat to 600 g of water at 60.0°C, how much water will be left in the container?…

A: Given: The amount of energy added is 700 kJ. The latent heat of vaporisation is 600 g. The initial…

Q: A student doing an experiment pours 0.500 kg of heated metal whose temperature is 98.0 oC into a…

A: Given that a student doing an experiment pours 0.500 kg of heated metal whose temperature is 98.0 oC…

Q: A human Body loses about 360 kJ of heat every hour at 23.4 0C. Assuming that an average human body…

A:

Q: A room has a pine ceiling (k = 0.12 WI(m-Cº) ] that measures 3.0 m x 4.0 m 2.0 cm. On a cold day,…

A: We need to calculate how much energy will be saved if we use wool as an insulator.

Q: The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305…

A: Amount of heat,Q= MCdt Where M= mass of metal=  38.0 g  C= specific heat= 0.128 J/(goC) dt=change in…

Q: On a hot day, the temperature of an 80,000-L swimming pool increases by 1.50ºC1.50ºC. What is the…

A:

Q: Calculate the amount of heat needed to change 10 kg of ice to steam. (Specific heat of water = 4186…

A:

Q: At what rate is heat lost through a 1.7m x 1.4m rectangular glass windowpane that is 1.0cm thick…

A: Given Data: Area of the windowpane is A = 1.7 m x 1.4 m. Thickness of the windowpane is l = 1 cm.…

Q: If 40 kcal of heat is added to 2.0 kg of water, what is the resulting temperature change?…

A:

Q: How much heat is needed to change the temperature of 215 grams of ice at -20 °C to liquid water at…

A:

Q: A 1.50-kg aluminum tea kettle contains 1.80kg water and placed on a stove. If there is no heat lost…

A:

Q: Freezing/Melting Temperature of water: T= 0 °C; Condensation/Boiling Temperature of water: T= 100°C;…

A:

Q: How much heat must be absorbed by ice of mass 949 gram to melt completely? Provide the answer in kJ…

A:

Q: How much heat is required to raise the temperature of a 225-g lead ball from 15.0°C to 25.0°C? The…

A: Given : m = 225 g = 0.225 kg To = 15°C T = 25°C c = 128 J/kg.K

Q: How much heat must be removed from 100 g of water at 20°C to convert it to ice at -20°C? (Lf = 79.71…

A: Given data: The mass of water, m=100 g. The initial temperature of water, Ti=20 °C. The specific…

Q: What will be the final temperature if 4.0x10^4 J of heat is transferred to a 1.5kg block of aluminum…

A: Given: Specific heat of aluminum = 9×102 J/kg.C° Initial temperature Ti = 15 °C Heat transferred =…

Q: Water with a mass of 0.500 kg at 15.0 degrees C is mixed with 0.800 kg of water t 35.0 degrees C.…

A: According to the thermodynamic principle under equilibrium condition, the sum of the heat gained by…

Q: How much heat is required to raise the temperature of 1.10 lb of water from 20C to 30C? Given that…

A: Given : Mass (m) = 1.10 lb = 498.952 g T1 = 20°C T2 = 30°C c = 1 cal/g°C

Q: Brickwork is to be incorporated into the interior of a house to act as a heat absorber.  Each brick…

A: The mass of 100 gal of water is, M = 1(378.5) = 378.5kg The total heat capacity of 100 gal or 378.5…

Q: How much energy is required to increase the temperature of 0.02 kg water by 1°C? [specific heat of…

A: Given data: Mass (m) = 0.02 kg Increase in temperature (ΔT) = 1°C Specific heat capacity of water…

Q: On a cold winter day when the temperature is -20.0 ∘C, what is the amount of heat needed to warm to…

A: Given data: Mass of the air, m=1.3 g = 1.3×10-3 kg Specific heat capacity of the air, s=1020 J/kg.K…

Q: A student obtains the following data in a calorimetry experiment designed to measure the specific…

A:

Q: At what rate is heat lost through a 1.3 m x 2.7 m rectangular glass window that is 0.32 cm thick…

A: Given data as per question  thickness  =   0.32 cm T1       =    16 T2    =   22 K    =   0.75w/mK

Q: If you add 700 kJ of heat to 700.0g of water originally at 70.0°C, how much water is left in the…

A:

Q: A glass container has a total wall area (including the lid) of 1.75 m and a wall thickness of 1.5…

A: In this ,first we have to calculate the heat required to melt the ice. And that heat will come…

Q: How many kilograms of water must evaporate from a 49.2 kg woman to lower her body temperature by…

A:

Q: A steam boiler is made of steel and weighs 900 kg. The boiler contains 400 kg of water Assuming that…

A: Given data: The mass of steel is ms=900 kg. The mass of water is mw=400 kg. The specific heat of…

Q: You wish to heat 20 kg of water from 40°C to 80°C.  How many kcal of heat are necessary to do this?…

A: The mass of the water,   The change in temperature,

Q: What is the final temperature of a 3.4 kg iron at 45°C, if 5000 calories of heat was released, if…

A: Given data:  Mass (m) = 3.4 kg = 3400 g Initial Temperature (T0) = 45°C Change in heat energy (ΔQ) =…

Q: How much heat is required to raise the temperature of a 225 g lead ball from 15 °C to 25 °C? The…

A: Option C is the right answer  288 J

Q: 10 grams of ice at 0 degree celcius was mixed with 15 grams of water at temperature of 20 degreee…

A:

Q: What is the final temperature of a 3.4 kg iron at 45°C, if 5000 calories of heat was released, if…

A: Given value--- mass = 3.4 kg. initial temperature = 45 degree C.  Q = 5000 cal. specific heat of…

Q: At what rate is heat lost through a 1.09 m × 3.16 m rectangular glass window that is 0.518 cm thick…

A:

Q: 20g of 60 degrees C water is mized with 100 g of 25 degrees C water. waht is the final temperature…

A: Given data:  m1 = 20 g at T1 = 60°C m2 = 100 g at T2 = 25°C Required:  The final temperature (T)

Q: A 4cm x 4cm x 4cm cube of iron (density 7,800 kg/m³, specific heat 0.45 J/(g*K)) is removed from an…

A:

Q: 1000 kg of fish was placed on chiller box storage. The product temperature is 4°C.  Determine the…

A: Given information, Mass of fish, m = 1000kg  Initial temperature of fish , T1 = 4° C  Freezing…

Q: Determine the rate of heat flow through a glass window 1.50 m high and 2.0 m wide. The thickness of…

A:

Q: In Rusayl cable factory, 150 kg of raw copper is molten to make wires and cables. If 20.1 MJ of heat…

A: Given: The mass of raw copper is m=150 kg. The heat required is Q=20.1 MJ.   The expression of…

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.