Q: How much energy (in J) is required to evaporate 25% of 4g of water currently at 100 C? The answer…
A: Given that, mass of water = 4g Temperature = 1000C
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A: The energy required to evaporate oxygen Q=3.40×105J=340 kJ The latent heat of vaporization of oxygen…
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A: L0 = 200 ft T0 = 100C T = 300C ∆T = T - T0 = 30 - 10 = 200C L = ?
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A: Given: initial temperature of Al, T1 = 150 degree C final temperature of mixture,T = 83 degree C…
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A: Mass of each pellet m=1.9 g which are heated to a temperature of T1=200 C, mass of water m2=498 g…
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A: Given,
Q: (6) An aluminum tube is 30000m long at 200C. What is its length at (a) 1000C and (b) OoC?
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Q: A 32.5-g iron rod, initially at 22.7 oC, is submerged into an unknown mass of water at 63.2 oC, in…
A: Mass of iron rod = 32.5 Initial temp of iron rod = 22.7°C Initial temperature of water = 63.2°C…
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A: Given: initial temperature of Al, T1 = 150 degree C final temperature of mixture, T = 59 degree C…
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A: mass of ice (m) = 0.195 kg Initial temperature (T) = -20oC Final temperature = 130o C
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Q: What is Ƴ if V = 0.250c ?
A: Given: The velocity is 0.250c.
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Q: How much energy (in J) is required to evaporate 25% of 4g of water currently at 100 °C? The answer…
A: Given:- mass of water = 4g currently temperature of the water = 100°C Find:- How much energy is…
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Q: 0.25 kg cup of water from 55 C to 82C, how much energy does this take?
A: The expression for the thermal energy is written as, Here, m, c and ΔT represent the mass of the…
Q: How much energy (in J) is required to evaporate 25% of 4g of water currently at 100 oC? The answer…
A: m=Mass of water=0.25×4=1 gLv=Latent heat of vaporization=2260×103 J/kg
Q: What is Ƴ if V = 0.100c ?
A: Given data: Speed is, v=0.100c.
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- Thermal expansion (6) An aluminum tube is 30000m long at 20oC. What is its length at (a) 1000C and (b) OoC? (7) What is the change in length of a rod made up of 2000m of copper and 1000m of aluminum placed end to end as it moved from an ice water bath to a steam bath? (8) A structural steel l-beam is 15m long when installed at 200C. How much will its length change over the temperature extremes -30oC to 500C? ANS. 1.32cm (9) A metal rod made of some alloy is to be used as a thermometer. At 0oC its length is 40000cm, and at 1000C its length is 40060cm. (a) What is the linear expansion coefficient of the alloy? (b) what is the temperature when its length is 39975cm? (10) A hole with diameter of 2cm is drilled through a stainless steel pate at room temperature (200C). By what fraction (Dr/r) will the hole be larger when the plate is heated to 1500C? (11) Calculate the fractional change in volume (Dv/v) of an aluminum bar that undergoes a change in temperature of 300C.Thermal expansion (6) An aluminum tube is 30000m long at 20oC. What is its length at (a) 1000C and (b) OoC? (7) What is the change in length of a rod made up of 2000m of copper and 1000m of aluminum placed end to end as it moved from an ice water bath to a steam bath? (8) A structural steel l-beam is 15m long when installed at 200C. How much will its leng change over the temperature extremes -300C to 500C? ANS. 1.32cm (9) A metal rod made of some alloy is to be used as a thermometer. At OoC its length is 40000cm, and at 1000C its length is 40060cm. (a) What is the linear expansion coefficient of the alloy? (b) what is the temperature when its length is 39975cm? (10) A hole with diameter of 2cm is drilled through a stainless steel pate at room temperature (200C). By what fraction (Dr/r) will the hole be larger when the plate is heated to 1500C? (11) Calculate the fractional change in volume (Dv/v) of an aluminum bar that undergoe a change in temperature of 300C. (6) The Eiffel tower is…The density of water at 40 C is 1000 kg/ m3. What is the density of water at 950C. Use β= 210x10-6 C0.
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