Q: have water vapor at -10°C
A: Given:- Water vapor at -10°C Find:- Is it possible to have water vapor at -10°C?
Q: Why will water at the bottom of geyser not boil when it is at 100 degree C?
A: At sea level, water boils at 100°C. However, the boiling point of water depends on its pressure. At…
Q: Suppose you have a 100.0 gram brass block which you place in 100.0 grams of water. At equilibrium…
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Q: What is the identity of a 100g sample of metal that, upon absorbing 900 J of heat, increases in…
A: Using the equation for the heat required to increase the temperature, Q=mc∆Tc=Qm∆T
Q: How much heat in kcal must be added to 0.43 kg of water at room temperature (20°C) to raise its…
A:
Q: Show that 5000 cal are required to increase the temperature of 50 g of water from 0°C to 100°C. The…
A: Heat Required Q = m*c*(T2 - T1 )
Q: ls at 100 degree C, how much heat is required to convert 100 gram
A: The boiling temperature of the water Tbw = 100oC The water at the temperature of Tw = 20oC The mass…
Q: Calculate the energy released when 14 g of liquid water lowers from 14 degrees Celsius to 0.0…
A: mass of water , m=14 grow=0.014 kgit is cooled from 14°C to 0°C & then freeze at 0°CSpecific…
Q: According to the law of conservation of energy, if ocean water cools, something else should warm.…
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Q: Calculate the heat needed to convert 15 g of ice at -10 degrees Celsius to liquid water at 30…
A: Given: The mass of ice is 15 g. The initial temperature is -10 degrees Celsius. The final…
Q: Calculate the energy absorbed when 89g of water is boiled at 100.0°C. Latent heat of vaporization…
A: The boiling of the water is the process by which water turns into vapor when it is heated to its…
Q: How much heat transfer is required to raise the temperature of a 0.75kg aluminum pot containing…
A: Given data: Mass of the aluminium pot is, mAl = 0.75 kg Mass of water contain in, aluminium pot is,…
Q: A 129 kg lead block is heated to 100 C from 20 C, how many calories are required? Show detailed…
A: Given data: Mass (m) = 129 kg Initial temperature (Ti) = 20°C Final temperature (Tf) = 100°C…
Q: the specific heat capacity of the system during a certain process is given by Cn=(0.4+0.004. T)…
A: dQ = m×Cn×dT By integrating both sides Q = 6 × [.4T+(.004T^2/2)] Put upper limit 125°C and lower…
Q: Suppose a 2Kg of glycerine have a temperature of 30°C.Heat is supplied to a steady rate of 100 W.…
A: Mass, m = 2 kg Initial temperature, Ti = 30°C Final temperature, Tf = 75°C Power, P = 100 W Time, t…
Q: A 500 gram cube of lead is heated from 25 °C to 75 °C. How much energy was required to heat the…
A: Given: mass, m = 500 g = 0.5 kg T = 25 °C T'= 75 °C. c = 0.129 J/g°C = 129 J/ kg°C.
Q: What should be the temperature of supply air of the all air reheat if the temperature requirement of…
A: Given : Choose correct option about temperature of supply air
Q: Where does water boils faster
A: Water boils faster at higher elevation. Taif city has a elevation of 1879m where as Jeddah city has…
Q: Why is it that a tub of water placed in a farmer's canning cellar helps prevent canned food from…
A: Canning cellar is a place build by the farmers to store the foods in cold winters.The water has…
Q: How much ice at-15 °C is needed to condense 119 g of steam at 100°C and redu The specific heat…
A: Given Initial Temperature of ice, T1=-15°CMelting temperature of Ice ,T2=0°CMass of steam, ms=119…
Q: How many kilo calories (kcal) required to change 1 kg of 0°C ice to 0°C are water?
A: Total Heat required for phase change from ice to water is given by Q = ml Here, Q = total heat…
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: How much heat is required to change 1.2kg of lead from 15°c to 65°c temperature?
A: The given data are as follows: Mass of the lead, m = 1.2 kg or m = 1200 g Initial temperature, Ti =…
Q: Discuss the role of high specific heat capacity of water with reference to climate in coastal areas.
A: Specific heat capacity is the amount of heat energy takes to raise or lower the temperature of one…
Q: Suppose one has a 50.0 ml sample of ethanol at 22.0oC (centigrade) and wants to warm it to 60.0oC…
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Q: 2.0 liter of 80 °C water is mixed with 500g of 40 °C water. What will be the thermal equilibrium of…
A: T= 72 degree Celsius Or T= 345.15 Kelvin
Q: Which requires more heat: 1 g ice at 0° C or 1 g water
A: Given; 1g of ice at 00C or 1 g water at 00CWhich requires more heat to raise its temperature to…
Q: Calculate the heat energy required to melt a 20g block of silver at 20°C. [The melting point of…
A: Given data : latent heat of fusion, Lf = 8.83×102 J/kgspecific heat capacity of silver, C= 2.34×102…
Q: When 200 mL of water in an electric kettle is heated from 20°C to 35°C to make a cup of tea, how…
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Q: Ethyl alcohol has about one-half the specific heat capacity of water. If equal masses of each at the…
A: We heat , Heat Q = mc(dT) change in temperature dT = Q/mc Given mass (m) is same for both liquids…
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 necessary to change 100g of ice at -20°C into water at 10°C? a) 2 Kcal b) 0.2 Kcal…
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Q: Calculate the value of dryness-7 fraction? in vessel which is volume of 5 m^3 contains (4.95 m^3) o…
A: Solution: given that volume =5 m3 saturated vapour vg = 4.95 m3 saturated liquid water vf = 0.05 m3
Q: H2O boils at 115°Cat a certain depth. What temperature in K the water will boil if the water is to…
A: We have temperature T=115oC at which water boils at a certain depth. Usually with increase in depth…
Q: How many joules are given off when 120 g of water are cooled from 25ºC to - 25ºC. SHC of ice is…
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Q: If 100 g of a stream at 100∘C was mixed with 10 kg of ice at -100∘C, find the final temperature of…
A: Given the heat losses to the surrounding is zero. Therefore,
Q: Condensation of water in the air is an important process in determining the climate of an area. When…
A: Heat of condensation is just opposite to Heat of vaporization It is the amount of heat released when…
Q: How much energy is needed to heat 6.2 kilograms of gold from a temperature of 0 °C up to its melting…
A: We know the heat required is given by Q=mC∆T Here m=6.2 kg=6.2×103g C=0.031 cal/g°C…
Q: specific
A: A substance that has more specific heat absorbs a large amount of heat without rising in…
Q: Specific heat capacity of ice is 2093 J/kg °C. What will be this value in cal/g °C O a. 0.5 O b. 1…
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Q: How much heat is necessary in kcal to change 15-lb of ice at -30 degrees C to water at 60 degrees C.…
A: Given data- mass of ice m=15 lb 1 lb=0.454 kg so m=15 × 0.454 kg=6.81 kg Lf=80 Kcal/Kg Lv=540…
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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Q: You are given 3.74 x 10g of coffee (same specific heat as water) at 83.6°C. In order to cool this to…
A: Given mass of coffee = 3.74 x 102 g specific heat of coffee = specific heat of water = 1 cal/g.ᵒC…
Q: How much heat is required to convert 18. 0 g of ice at – 10.0°C to steam at 100. 0°C? Express your |…
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Why does all the water in the lake have to be cooled to 4 degree C before surface water can be cooled below 4 degeree C?
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- The escape velocity of any object from Earth is 11.1 km/s. At what temperature would oxygen molecules (molar mass is equal to 32.0 g/mol) have root-mean-square velocity vrms equal to Earth's escape velocity of 11.1 km/s.Why does all the water in a lake have to be cooled to 4°C before surface water can be cooled below 4°C?If cooling occurred at the bottom of a pond instead of at the surface, would the pond freeze from the bottom up? Explain.
- Calculate the heat energy required to melt a 20g block of silver at 20°C. [The melting point of silver is 960°C, its specific heat capacity is (2.34×102Jkg-1K-1 )and its heat of fusion is (8.83×102 J/kg ])If 100 g of a stream at 100∘C was mixed with 10 kg of ice at -100∘C, find the final temperature of the mixture assuming no heat losses to the surroundings.How much heat transfer is required to raise the temperature of a 0.75kg aluminum pot containing 2.5kg of water from 30degree C to the boiling point and then boil away 0.75kg of water?
- A brass rod and aluminum rod have an initial volume of 455 and 453 cubic meter, respectively at temperature of 20 centigrade. At what common temperature will the two rods be of the same volume?Calculate the energy absorbed when 89g of water is boiled at 100.0°C. Latent heat of vaporization (Water) = 2.26x106 J/Kg.How much energy is needed to heat 6.2 kilograms of gold from a temperature of 0 °C up to its melting point of 1064 °C? The specific heat capacity of gold is 0.031 cal/g °C. Give your answer in both calories and Joules.
- At which temperature could water contain the most dissolved gas at a pressure of 101.3 kPa?Condensation of water in the air is an important process in determining the climate of an area. When 1.35 mol of water condenses in a cubic meter of air ___________kj of heat would be releasedIf you are exposed to water vapor at 100°C, you are likely to experience a worse burn than if you are exposed to liquid water at 100°C. Why is water vapor more damaging than liquid water at the same temperature?