Q: What are the benefits of the high specific heat of water?
A: Specific heat is defined as the amount of heat needed to increase the temperature of unit mass of a…
Q: To make steam, you add 5.60 * 105 J of thermal energy to0.220 kg of water at an initial temperature…
A: Determine the heat required to heat the water to 100oC as follows. Q1=mc∆T=0.220 kg4186 J/kg·°C100°…
Q: How much heat is necessary to change 10g of ice at -20°C into water at 20°C? The specific heat of…
A: Given: Weight of ice (mice) = 10 g. Initial temperature (Ti) = -20 ̊C. Final temperature (Tf) = 20…
Q: Suppose 13.0 kg of 7.0°C water is mixed with 18.8 kg of 80°C water. If no heat is lost in this…
A: Given: Mass of the water = 13 kg Temperature = 70 C Mass of the water mixed = 18.8 kg The…
Q: How much heat is necessary to supply, to transform 2Kg of ice at -10ºC and 1atm into steam? Where C…
A: Basic Details The total amount of heat is the sum of heat to convert ice form -10˚C to 0 ˚C, the…
Q: en up by 1 gram of 100 degree celsius steam taht condenses and drops in temperature to 22 degree…
A: We know that the heat transfer by the substance is given as Q = mC∆T and the heat transfer when the…
Q: The same heat transfer into identical masses of different substances produces different temperature…
A: To determine: The final temperature of the different substances that produces different temperature…
Q: An ice cube at 0 °C melts to water by absorbing heat. If 10.5 kcal of heat are required to melt the…
A: For a phase change, Q = n∆H where Q = heat (energy) lost or gained n = number of moles of a…
Q: How much heat is required to melt 200 g of ice at 0°C into water at 0°C?
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Q: How many kilograms of -5°C ice per day will melt and evaporate to steam after adding a total of 7500…
A: Specific heat of water is defined as the amount of heat supplied to 1 kg of water to increase its…
Q: How much heat energy in calorie is necessary to convert 100.0 g of ice at 0°C to water vapor (steam)…
A: Solution-
Q: Some gun fanciers make their own bullets, which involves melting and casting the lead slugs. how…
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Q: What is the heat transfer required to freeze 2 liters of water at 50°C to ice at 0°C? (HINT: The…
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Q: How much energy is transferred when a gram of steam at 100oC condenses to water at 0oC?
A: When a substance is heated its temperature increases. This increase in temperature corresponds to…
Q: How much heat energy does it take to boil 2.35 kg of water at 100oC completely to steam at 100oC ?…
A: As temperature of water is100° C, only latent heat of vaporization is required to convert the water…
Q: What is the heat transfer required to freeze 2 liters of water at 50°C to ice at 0°C? (HINT: The…
A:
Q: One kilogram of water and 200 grams of ice are in thermal equilibrium at 0°c. If 400 g of steam at…
A: mass of water (m) = 1 kg = 1000 g Mass of ice (m') = 200 g mass of steam (M) = 400 g initial…
Q: How much energy in unit Kcal is required to change 10g of ice at 0°C to steam at 100°C
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Q: How much heat ? is required to change 19.0 g of ice at −1.50∘C to 19.0 g of steam at 131∘C?
A: total energy required to go from ice to water, and then from water to vapor - the phase changes…
Q: A student has a calorimeter with 211.7 grams of 27.3∘? water contained within it. The student then…
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Q: How much heat energy Q we need to heat mass m = 140 mg from room temperature T = 20 degrees Celcius…
A: Given: The mass m = 140 mg = 0.14 g Room temperature T = 20 oC Final temperature T' = 100 oC Note:…
Q: A 0.250-kg block of a pure material is heated from 20.0ºC to 65.0ºC by the addition of 4.35 kJ of…
A: The expression for the required specific heat,
Q: An 85 piece of ice at -15℃ is melted then heated to form superheated steam at 140℃. Calculate the…
A:
Q: A 10 cm thick piece of beef steak will be frozen in the freezer room -30 ° C. This product has a…
A: Given: Thickness of beef steak, a = 10 cm = 0.1 m Temperature of freezer…
Q: How many joules of heat does it take to turn 3kg of -20oC ice into 115oC vapor?
A: So initially 3Kg ice from -20 degree Celsius to 0 degree Celsius. Then in next step the 3Kg ice…
Q: The same heat transfer into identical masses of different substances produces different temperature…
A: Given: Q=1.0 Kcal Q=1.0*4184 JQ=4184 JT1=20.0°Cm=1.0 kg
Q: How much heat is necessary to change 300 g of ice at 10°C into water at 90°C? a) 24 kcal b) 2.4 kcal…
A: Given: The initial temperature of ice (T1) = 10 ̊C (there is some correction that ice exist at…
Q: How many calories of heat are required by 80 grams of ice at -10°C to change to steam at 150 °C?…
A: M = 80gram
Q: Calculate the number of calories given off by 300 g of water cooling from 25 deg C to 10 deg C
A: Given data: Mass (m) = 300 g Initial temperature (T0) = 25°C Final temperature (T) = 10°C Required:…
Q: The hot plate in your lab takes an average of 8minand 55sto boil 100mLof water. How long does the…
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Q: How much heat is required to melt 20 g of ice initially at 0 degree Celsius and convert it into…
A:
Q: How much heat must be added to 15 g of water at an initial temperature of 66°C to do the following?…
A: Given : Mass of water (m) = 15 g Initial temperature (To) = 66°C
Q: How much heat energy does it take to boil 2.35 kg of water at 100oC completely to steam at 100oC ?
A: The formula for the heat energy required to convert the water to steam is: Here, Lv is the latent…
Q: How many calories of heat is required to change 3.5 grams of ice at 0 Celsius to water at the same…
A: Given values: Mass of the ice, m=3.5 grams Latent heat of fusion of water, Lf=80 cal/grams
Q: Section 14.5 (#12) How much heat must be absorbed by its surroundings to cool a 565 g cube of Iron…
A:
Q: A bag containing 0degree C ice is much more effective in absorbing energy that one containing the…
A: The ice will melt at first and then the temperature of the melted water will raise.
Q: How much heat is required to convert 10.0 g of ice at -7.00 ∘C to steam at 100.0∘C? Express your…
A: Given Data : The mass of the ice is given as mi=10g The initial temperature of ice is given as…
Q: How much heat must be added to 150 grams of ice at 0°C to form water at 0°C?
A: mass , m = 150 gm To find = heat to be added
Q: how much heat is necessary to chnage 530g of ice at -17 degrees celsius to water at 20 degrees…
A: Heat given = mL+mcΔT
Q: much heat is required to change 10 g of ice? at 0 °C to water whose temperature is 20 °C!
A: Given Mass m = 10 g = 10 ×10-3 kg Latent heat of fusion L = 33600 J/0 C Specific heat of water =…
Q: How much heat is required to raise 7.9 kg of gold 55°F? (include units with answer)
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Q: How much heat is required to raise 10 liters of water from 0o C to 50o C? Answer in kilocalories…
A: To solve this problem, we need to know/look up this formula Q=msΔT Where,Q is amount of heat…
Q: How much heat must be supplied to a 500.0g iron pan to raise its temperature from 20.0Co to 373.0K?
A: Given : mass of the iron road, m=500 g=0.5 Kg Initial temperature of the iron pan, Ti=20 C0 Final…
Q: After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the…
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Q: How much heat is required to convert 60 g of ice at -15 °C steam at 130 °
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Q: Steam at 100°C is passed into 20 g of water at 10°C. when water acquires a temperature of 80°C, the…
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How much heat energy does it take to heat 100 gm of silver by 20ºC?
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- How much thermal energy (in J) is required to boil 2.25 kg of water at 100.0°C into steam at 145.0°C? The latent heat of vaporization of water is 2.26 x 10° J/kg and the specific heat of steam is 2010 - kg - °C HINT Need Help?A Thermopane window of area 5 m² is con- structed of two layers of glass, each 4.4 mm thick separated by an air space of 3 mm. If the inside is at 11°C and the outside is at -24°C, what is the heat loss through the window? The thermal conductivity of glass is 0.8 W/m .° C and of air is 0.0234 W/m .° C. Answer in units of kW.The energy given off as heat by 310 g of an alloy as it cools through 40C° raises the temperature of 310 g of water from 30°C to 40° C. The specific heat of the alloy (in J/kg · C°) is: (Use c of water = 4186 J/kg C°) A surveyor’s 35-m steel tape is correct at 68° F. On a hot day the tape has expanded to 35.03 m. On that day, the tape indicates a distance of 16.50 m between two points. The true distance between these points is:
- A person inhales and exhales 2.00 L of 37.0ºC air, evaporating 4.00×10−2 g of water from the lungs and breathing passages with each breath. (a) How much heat transfer occurs due to evaporation in each breath?(b) What is the rate of heat transfer in watts if the person is breathing at a moderate rate of 18.0 breaths per minute?(c) If the inhaled air had a temperature of 20.0ºC , what is the rate of heat transfer for warming the air?(d) Discuss the total rate of heat transfer as it relates to typical metabolic rates. Will this breathing be a major form of heat transfer for this person?The specific heat of a substance varies with temperature according to c = 0.24 + 0.47T+ 0.049T2, with Tin °C and c in cal/g-K. Find the energy required to raise the temperature of 7.9 g of this substance from 1.0°C to 11°C. Number UnitsThe number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 4.9-g peanut if the energy from burning it is transferred to 0.48 kg of water held in a 0.095-kg aluminum cup, causing a 54.9degree celsius temperature increase?
- A person inhales and exhales 2.00 L of 37.0C air, evaporating 4.00 X 10-2 g of water from the lungs and breathing passages with each breath. (a) How much heat transfer occurs due to evaporation in each breath? (b) What is the rate of heat transfer in watts if the person is breathing at a moderate rate of 18.0 breaths per minute? (c) If the inhaled air had a temperature of 20.0C, what is the rate of heat transfer for warming the air? (d) Discuss the total rate of heat transfer as it relates to typical metabolic rates. Will this breathing be a major form of heat transfer for this person?One pound of air with an initial temperature of 200F is allowed to expand without flow between pressure of 90 and 15 psia. if the air is undergoing a process that follows pVn=c, where n is approaching infinity, what is the heat transferred in BTUDuring a marathon race David uses energy at a rate of 272 W. What volume of body fluid does he lose in the 5.5 hours of the race if 21.0% of the energy goes to the muscle tissue and the rest is used in removing the perspiration from the body. The latent heat of vaporization is 2.41 106 J/kg at 37.0°C and density of water is 1000 kg/m3. Answer in cubic meters.
- How much thermal energy (in J) is required to boil 3.00 kg of water at 100.0°C into steam at 151.0°C? The latent heat of vaporization of water is 2.26 x 10° J/kg and the specific heat of steam is 2010 kg.°C HINT Need Help? Read ItDogs keep themselves cool by panting, which results in evaporation from moist tissues of the airway and lungs, cooling the animal. Measurements show that, on a 95 ◦F day with a relative humidity of 50%, a 25 lb dog loses 1 g of water per minute if it is panting vigorously. What rate of heat loss, in watts, does this achieve?The world's most active volcanoes, such as the Kilauea volcano in Hawaii, can disgorge about 5 ✕ 105 m3 of 1025°C lava per day. What is the rate of heat transfer out of the earth by convection if this lava has a density of 2523 kg/m3 and eventually cools to 32°C? Assume that the specific heat of lava is the same as that of granite (840 J/(kg · °C)).
