How many joules of heat energy are required to heat 25.0 grams ethyl alcohol from prevailing room temp, 22.5 C, to its boiling point 78.5/ The specific heat of ethyl alcohol is 2.138 j/g C

Q: 0.5000 moles of steam at 200°C was chilled in a ultra-low temperature freezer to -90°C. If the heat…

A: It is given that steam is chilled from an initial temperature of 200°C to the ice at -90°C,

Q: What mass of water can be heated from 10.0 degrees C to 75.0 degrees C using 95.1 kJ of heat?

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Q: How much heat would need to be removed to cool 50.3 g of water from 25.6°C to -10.7°C? Csolid =…

A: Given, mass of water =50.3 gcools from 25.6 °C to -10.7 °Cwe are asked to calculate the amount of…

Q: Calculate the heat released, in Joules, when cooling a 350.0 g of aluminum bar from 70.0 degrees to…

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Q: Given that a 10.0 g sample of ice at 0.0 °C melts and then the resultant water proceeds to warm to…

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Q: How many joules are needed to boil 28.1 g of water if the heat of vaporization is 2256 J/g? . If you…

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Q: 500.0 g of water in its liquid phase loses 5,892 J of heat. If it started at a temperature of 25.0…

A: We have given that  The mass of water = 500g  Heat release in liquid phase = 5892J  Initial…

Q: Why do solids and liquids behave differently

A: Solids and liquid are a different states of matter and the solid and liquid behaves differently…

Q: How much heat must be absorbed to warm 25.0g of liquid methanol (C= 2.53 J g/k) from 30° to its…

A: Heat required to rise the temperature of methanol, Q1 = mc∆T , c = 2.53 J/gm.K, m = 25 gm, ∆T =…

Q: How much heat is required to heat a 18.4 g ice cube from -23.0 °C to -1.0 °C? Specific heat of ice…

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Q: What is the final temperature (in °C) of 940.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C…

A: Given,  The final temperature (in °C) of 940.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C…

Q: How many grans of liquid CFCu are needed to cool 226 gof water from 49.9 to 205 C? The specific heat…

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Q: How many kilojoules of heat energy are required to melt 200. g of ice at its freezing point?

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Q: If substance X has a higher specific heat value, how will the temperature of substance X compare to…

A: Given, The substance X has higher specific heat than…

Q: 125 g of dry ice (solid CO2) is dropped into a beaker containing 500 g of 66°C water. The dry ice…

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Q: What is the final temperature (in °C) of 100.1 g of water (specific heat = 4.18 J/g･°C) at 24.2°C…

A: Heat is the form for energy and is defined in joule.   Heat flow from high temperature to low…

Q: How much heat is involved when an 100 g ice at 0 °C is heated to 80 °C? Specific heat of ice is 0.5…

A: Given data - - > mass (m) = 100 g Specific heat (C) = 0.5 cal/g °C Initial temperature (T1) = 0°C…

Q: Isopropanol (C3H7OH, aka ‘rubbing alcohol’) has a heat of vaporization of 732.2 J/g. How many Jare…

A: Energy can be calculated as: Q = mHVap

Q: How much heat is involved when an 100 g ice at 0 °C is heated to 80 °C? Specific heat of ice is 0.5…

A: Given: Mass of ice is 100 g. Specific heat of ice is 0.5 cal/g·°C. Temperature is heated from 0°C to…

Q: How much heat is needed to melt 23.8 g of copper that is at an initial temperature of 21.7 °C? The…

A: The heat of a solution can be expressed by the following formula   Q=mCΔT Q=heat m=mass C=heat…

Q: A 30.0 gram solid substance melts fully at 5.4 degrees celsius when it absorbs 3.8 kJ of heat. What…

A: Given : mass of solid melting = 30.0 g And heat absorbed = 3.8 KJ = 3800 J…

Q: For a 7.48 gram sample of water at 0.63°C , what is the minimum amount of heat (in kJ) needed to…

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Q: How many joules of energy are released when 45.0 g of water cools from 18.0 ºC to 7.0 ºC?

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Q: How much heat is required to melt 62.0 g of ice at its melting point? Express your answer…

A: Given, amount of ice =62.0 gramwe are asked to calculate the heat required to melt 62.0 gram of ice…

Q: The heat of fusion for water is 80. Cal/g. How many calories of heat are released when 20.0 g of…

A: Given: Mass of water = 20 g The heat of fusion for water = 80 cal/g

Q: 54.73 g of water, H2O, 18.02 g/mol, was heated from -19.53 °C to 112.08 °C.  The freezing and…

A: Between the heating range of -19.53 to 112.08 degree all three states of water is present. At -19.53…

Q: Calculate the amount of energy (in kJ) that is evolved as heat when 1.0 L of water at 0 0C…

A: We have 1 L of water at 0°C, we have to calculate the heat evolved when it solidifies to ice .

Q: w many grams of liquid CF2CI2 are needed to cool 126 g of water from 44.1 to 26.3 °C? The specific…

A: CF2Cl2  chemical name is dichlorodifluoromethane   , it is colourless gas and  it is usually called…

Q: What is the total amount of heat released when 94.0 g water at 80.0 °C cools to form ice at −30.0…

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Q: . How much heat must be removed from 15.5 g of water at 90.0°C to cool it to 43.2

A: q=m.c.∆T q= heat  m=mass C.=heat capacity ∆T= difference in temperature

Q: The heat of fusion for sea ice is 79.70 cal/g. How many calories of heat are needed to melt a 35.00…

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Q: To calculate the amount of heat absorbed as a substance melts, which of the following information is…

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Q: What is the final temperature of 450.1 g of water (specific heat = 4.18 J/g･°C) at 24.2°C that…

A: a Specific heat is  heat is required to increase the temperature of of 1 gram of substance by…

Q: Calculate the heat, in kilocalories, that is absorbed if 139 g of ice at 0.0 ∘C is placed in an ice…

A: Given : Mass of ice i.e water = 139 g Initial temperature of ice = 0.0 oC Final temperature of water…

Q: How much energy (in calories) is required to melt 25.0 g of ice to water at 0.0 °C, heat the liquid…

A: Given that, heat of fusion of water = 79.7 cal g-1 To convert 25 g of ice at 0 ∘C to 25 g of water…

Q: Determine the heat in kJ to heat 7.18 moles of ice from -29.286 degrees celcius to -2.357 degrees…

A: Mass can be determined using the below given equation,

Q: Calculate the amount of heat, in calories, that must be added to warm 70.9 g of brick from 19.3 °C…

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Q: How much heat is required to boil 68.5 gg of water at its boiling point? Express your answer…

A: Boiling point :-  The temperature at which the vapour pressure of liquid becomes equal to…

Q: How much heat will it take to raise the temperature of 10 g of ice from −30°C to −20°C?   The…

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Q: If 85.1 cal of heat are added to 10.0 g of water (specific heat = 4.184 J/g oC) at 30.0 oC, what is…

A: * Heat added = q = 85.1 cal (1 cal = 4.814 J ) q = 85.1 × 4.814 J = 409.67 J * Mass of water = m =…

Q: Determine the amount of heat, in kJ, required to heat 19 g of solid Ca at 125 C to 851C (still…

A: Given; mass, temperatures

Q: Calculate the amount of heat needed to raise the temperature of 55.0 g of liquid water from 25°C to…

A: The mass of liquid water is = 55.0 g The initial temperature of the liquid water is = 25°C The final…

Q: How many joules of heat are required to heat 25.2 g of ethyl alcohol from the prevailing room…

A: Heat required to change the temperature of a substance depends on the amount and the specific heat…

Q: at 100.0C the molar heat of vaporization of water is 40.67KJ/mol. at 25.0C approximately room…

A: When an athlete work out, the water is vaporized at room temperature. The heat of vaporization of…

Q: How much energy is required to vaporize 250 g of water at its boiling point?

A: The energy required for the vaporization of water can be calculated from the standard value of the…

Q: How much heat, in calories, is required to heat a 18.4 g ice cube from -23.0 °C to -1.0 °C? Specific…

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Q: Calculate the heat change in kilojoules for freezing 30.0 g of water at 0 ∘C.

A: Heat change in freezing is equal and opposite of heat change in melting or heat of fusion (dHfus).…

Q: amount of heat released

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Q: compare the amount of heat given off by 1.40 mol of liquid water when it cools from 100.0c to 30c to…

A: Heat capacity of liquid water - 4.184 J/(g oC) Heat capacity of steam - 2.03 J/(g oC) Amount of…