The enthalpies of vaporization for the following molecules increase in the order of CH4< C2H6

Q: A 28.9-g sample of water at 290. K is mixed with 48.3 g water at 350. K. Calculate the final…

A: If we assume that no heat is lost to the surroundings, then you can say that the heat lost by the…

Q: 5.50 g of solid sodium hydroxide is dissolved in 175 mL of water. Using a coffee-cup calorimeter,…

A: 4.  Given that,  Amount of solid NaOH dissolved in 175 mL water = 5.50 g Temperature change of water…

Q: 0.250-g chunk of sodium metal is cautiously dropped into a mixture of 50.0 g water and 50.0 g ice,…

A: Moles of Na = mass/molar mass = 0.250g/(22.99gmol-1) = 0.01087 mol 2 moles of Na produces 368 kJ of…

Q: 8 O HBr 60 °C ∞.( O F O Br FeBr

A: Reactions are processes in which a reactant is converted to a product. During this process, the…

Q: 4) What is the total enthalpy change ( in kJ) during the process in which 36.1 g of ice at -17.3 °C…

A: We need to convert 36.1 g of ice at -17.3 .C  to 36.1 g of water at 0 .C .   Total change in…

Q: The heat of vaporization of water at 373 K is 40.7 KJ/mol.  When 4.50 g of steam condenses at 373 K,…

A: Number of moles of water (steam) can be calculated as follows: No.of moles of water = massmolar…

Q: Two 20.0 g ice cubes at –11.0 °C are placed into 295 g of water at 25.0 °C. Assuming no energy is…

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Q: Ammonia 1NH32 boils at -33 °C; at this temperature it has adensity of 0.81 g&gt;cm3. The enthalpy of…

A: GIVEN: Density of NH3 = 0.81 g/ml Heat of Formation of NH3 = -46.2 kJ/mol 1/2N2(g)  + 3/2H2(g)…

Q: For each compound in the table below, decide whether there would be any hydrogen-bonding force…

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Q: 7 6. 8750 J of heat are applied to a 170 g sample of metal, causing a 56°C increase in its…

A:

Q: Under normal atmospheric pressure, nitrogen boils (and condenses) at -196oC. When 7.7 g of nitrogen…

A:

Q: The enthalpy of fusion of H₂0 is 6.01 kJ/mol. How much energy is given off when 4.68 mol of H₂O is…

A: Given - Enthalpy of fusion = 6.01 KJ/mol 4.68mol of H2O is frozen .

Q: Calculate the heat absorbed when 149 g of liquid ethanol at 25.0°C is converted to gaseous ethanol…

A:

Q: Which of the following graphs best represents the change in the total energy vs. temperature as N₂O…

A: In the given phase diagram of N2O, The far left region shows the solid phase of N2O. The far right…

Q: Sulfur dioxide is produced in enormous amounts for sulfuric acid production. It melts at −73.0°C and…

A: The number of moles of sulphur dioxide is calculated as,

Q: An instant pot pressure cooker has become popular in recent years.  Given that the enthalpy of…

A: Given data set: Atmospheric pressure (P1) = 1 atm The pressure inside instant pot cooker (P2) = 3.38…

Q: Based on the thermodynamic properties provided for water, determine the amount of energy needed for…

A: Given that : Mass of water (m) = 2.60 kg Initial temperature = -3.00°C Final temperature = 61.0°C

Q: (specific heat capacity of ice = 2.09 J/g°C, liquid water = 4.18 J/g°C and steam = 2.01 J/g°C,…

A: The amount of solid ice is = 0.10 g The temperature of ice is = −75.0°C The final temperature of the…

Q: How much energy does it take to turn 10.0g of liquid benzene (C6H6) into a gas at the boiling point?…

A: Given: mass of liquid benzene=10 g  heat of vaporization= 405 calg

Q: Describe the changes (if any) in potential energy and in ki-netic energy among the molecules when…

A: When gaseous PCl3 is condensed, the chemical equation is written as, PCl3g→PCl3l The kinetic energy…

Q: Two 20.0 g ice cubes at −16.0 ∘C−16.0 ∘C are placed into 255 g255 g of water at 25.0 ∘C.25.0 ∘C.…

A: Given data:

Q: A 46.81 g46.81 g sample of a substance is initially at 25.7 °C.25.7 °C. After absorbing 1415 J1415 J…

A: Given, heat(q) = 1415 J mass(m) = 46.81 g temperature change(ΔT) = Tfinal - Tinitial = 177.9 °C -…

Q: 6 .If 2.1g of 100.0C steam begins to condense on a container of liquid water at 25.0C and they…

A: Given : mass of steam = 2.1 gram and final temperature of the container = 46.7°C. To find : mass of…

Q: How much heat energy is needed to convert 15g of H2O into steam? (See "MUST HAVES" or reference…

A: To calculate the energy required to convert water to steam , we would use Heat of vaporisation of…

Q: A 0.537 g sample of steam at 103.2 ∘C is condensed into a container with 5.60 g of water at 16.7 ∘C.…

A: Given: Mass of steam = 0.537 g. Initial temperature of steam = 103.2 oC Mass of cold water = 5.60 g.…

Q: The heat required to raise the temperature from 300.0K to 400.0K for 1mole of a gas at constant…

A: This gas behaves ideally or not and is monoatomic or not has to be identified and explained.

Q: A 124.0 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 \deg C to 147.6…

A: Mass of the unknown substance= 124.0 g = m Heat capacity of liquid = 1.62 J/g･°CHeat capacity of the…

Q: Generally speaking, substance? ΟΑ ΔΗub > ΔΗap > ΔΗμs Ο ΔΗp > ΔΗ > ΔΗab O B) AHvap O0 ΔΗb > ΔΗus >…

A: the sum of its enthalpy of fusion and enthalpy of vaporization is approximately equal to its…

Q: Calculate the heat in kJ for 175 g of water vapor condensing to liquid water from 228.0 oC to 175.0…

A: Given: Mass of water vapour = 175 g Initial temperature (T1) = 228°C Final temperature (T2) = 175°C…

Q: A 0.589 g sample of steam at 105.1 °C is condensed into a container with 5.61 g of water at 14.8 °C.…

A: Answer:Law of conservation of energy states that energy can neither be created nor destroyed and it…