A quantity of steam (390 g) at 113 degrees Celsius is condensed, and the resulting water is frozen into ice at 0 degree Celsius. How much heat, in kcal, was removed a) from the steam to reach 100 degrees Celsius? b) to condense the steam from 100 degrees Celsius to water at the same temperature?

Q: How much water remains unfrozen after 50.2 kJ is transferred as heat from 260 g of liquid water…

A:

Q: The human body, while at rest, produces heat energy at a rate of about 117 W. How much sweat (in g)…

A: The heat energy evaporated  per minute is,   Q=Qt˙=117 W1 minute60 s1 minute=7020 J

Q: A 50.0-g copper calorimeter contains 260 g of water at 20.0°C. How much steam at 100°C must be…

A: From calorimetric equation, the expression for the mass of the steam,

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: A 7.30-kg steel ball at 15.2°C is dropped from a height of 10.0 m into an insulated container with…

A:

Q: Approximately how much heat must be removed from 0.5 kg of 50 °C water to freeze it into 0 °C ice?…

A: Mass of water= ½ Kg Initial temperature of water, Ti= 273+50 K Latent heat of fusion= 334000 J/Kg…

Q: Approximately how much heat must be removed from 0.5 kg of 50 °C water to freeze it into 0 °C ice?…

A: Given data: Mass of water m= 0.5 Kg The initial temperature of the water, Ti= 273+50 K=323K The…

Q: A 0.03-in-thick copper plate (k = 223 Btu/h·ft·°F) is sandwiched between two 0.15-in-thick epoxy…

A: The heat conducted along the copper layer,

Q: How much heat transfer (in kilocalories) is required to thaw a 0.433 kg package of frozen vegetables…

A:

Q: To sterilize a 155 g glass water bottle, we must raise its temperature from 62.0ºC to 102ºC. How…

A: givenmass of glass water bottle m=155 g=0.155kgTermerature (T1)=62°CTemperature T2=102°C

Q: quantity of steam (150 g) at 113 celcius is condensed, and the resulting water is frozen into ice at…

A: Given Data: The quantity of steam is . The temperature of the steam is Ts = 113°C. The temperature…

Q: Chaeyoung wants to study the heat transfer between a 50 g of heated block of iron (cFe = 0.449 J/g…

A: To solve the given question, we will use the conservation of energy. The heat emitted by hot iron=…

Q: How many calories are needed to change 10 grams of ice at 0 degree to steam at 100 degree Celsius?

A:

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

A:

Q: At room temperature, a typical person loses energy to the surroundings at the rate of 62 W. If this…

A: Given data :                 Rate of energy lost  = 62 W

Q: .A 70Kg runner loses 0.5kg of water each hour through evaporation of perspiration in order to…

A: The problem is easy if use conservation of energy energy or we can say that calorimetry law that is…

Q: Q4: A 50.0-g copper calorimeter contains 250 g of water at 20.0°C. How much steam at 100°C must be…

A: Use the concept of calorimetry to calculate the amount of steam to be condensed.   The expression…

Q: A 648-g empty iron kettle is put on a stove. How much heat, in joules, must it absorb to raise its…

A: The specific heat for iron is  C = 113 cal/kg·C 1 cal = 4.1 90 J. mass of kettle is m = 648 g m =…

Q: Three 20.0 g ice cubes are dropped into 200 g of water in a thermally insulated container. If the…

A: Let final temperature be T mass of ice= 20 g mass of water= 200 g cw= 1 cal/gK ci= 0.53  cal/gK L=…

Q: A quantity of steam (390 g) at 113 degrees Celsius is condensed, and the resulting water is frozen…

A: Heat removed = mLv

Q: A quantity of steam (200 g) at 109 degrees Celsius is condensed, and the resulting water is frozen…

A:

Q: It took ten minutes to warm 250g of water at zero degrees (but not frozen) up to 21degrees Celsius.…

A: Given data The mass of the water is m = 250 g. The final temperature of the water is Tf=21°C. The…

Q: 2m2 of water is converted into 2050 m3 of steam at atmospheric pressure and 100°C temperature. If…

A: From thermodynamics’ first law, the internal energy in the process can be expressed as,

Q: To illustrate the effect of ice on the aluminum cooling plate, consider the drawing shown here and…

A: Given information: Here, Ti and Ta are the temperatures of the ice and the aluminium plates…

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

A:

Q: The human body, while at rest, produces heat energy at a rate of about 116 W. How much sweat (in g)…

A: Given data The heat energy is given as Q˙=116 W. The latent heat of vaporisation is given as Lv =…

Q: If ten grams of ice at 0 degree celcius is converted to water with temperature of 20 C degree, what…

A: To find the amount of heat required to raise the temperature of a mass m, we use the formula Q =…

Q: A 2.0-kg aluminum block is originally at 10 degree Celcius. If 36 k) of energy are added to the…

A: Given that, Mass of the aluminum block, m = 2 kg The initial temperature of the block,…

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

A: The expression for latent heat of fusion is given by Q=mLL=QmL=20.1 MJ150 kgL=0.134 MJkg

Q: How much heat energy does it take to boil 2.35kg of water at 100 degrees Celsius completely to steam…

A: Given Data: The mass of water is, m=2.35 kg   The expression for the heat energy in terms of latent…

Q: The heating element in an electric kettle is rated as 2.ok. If the water in the kettle is at…

A:

Q: 20) At room temperature, a typical person loses energy to the surroundings at the rate of 62 W. If…

A:

Q: How much heat energy in unit calorie is given up when 2 0.0 g of steam at 100.0 oC is condensed and…

A:

Q: A styrofoam container used as a picnic cooler contains a block of ice at 0°C. If 564 g of ice melts…

A: Given data:  Mass of ice (m) = 564 g = 0.564 kg Time (t) = 1 hour = 3600 seconds The heat of fusion…

Q: You draw in a deep breath on a chilly day, inhaling 3.0 L of 0°C air. If the pressure in your lungs…

A: The ideal gas law, PV=nRT   Rearrange the above equation for the number of moles, n=PVRT

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

A: Given Mass of steel ms = 900 kg Mass of water mw = 400 kg heat capacity of steel cs = 0.11 kcal/kg K…

Q: The human body, while at rest, produces heat energy at a rate of about 103 W. How much sweat (in g)…

A: The expression for the amount of sweat is,

Q: 2m' of water is converted into 2050 m of steam at atmospheric pressure and 100°C temperature. If 4.0…

A: From first law of thermodynamics…

Q: A Styrofoam container used as a picnic cooler contains a block of ice at 0 oC. If 0.5 kg of ice…

A: It is given that,  m=0.5 kgt=0.79 hr=2844 sec

Q: The specific heat of a substance varies with temperature according to the function c = 0.20 + 0.14T…

A:

Q: What is the minimum amount of liquid water at 26.5 degrees that would be required to completely melt…

A: Given, Mass of ice, Temperature of water, Minimum temperature of water possible, Specific heat…

Q: A 2.0-kg aluminum block is originally at 10 degrees celcius. If 36 kJ of energy are added to the…

A: The heat energy used to raise the temperature of aluminum is calculated by using the formula…

Q: After a short walk a student has lost 230 kcal of heat thanks to the evaporation of 418g of water…

A:

Q: 3. 120 grams of water are heated from zero degrees Celsius to 30.0 degrees Celsius. Which…

A: