Calculate the delta G of these temperatures and predict whether NaCl will melt or not?  a) 1060 kelvins b) 1074 k  c) 1100

Q: The vapor pressure of water is 15.5 atm at 248.1 K, and the vapor pressure of water is 83.3 atm at…

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Q: A student is investigating the boiling and freezing point of a liquid, He observes

A: According to the question -   Given -   1) Upon attaining the boiling point, the liquid Begins to…

Q: 1. Why does the temperature of a boiling liquid remain constant when heat is continuously being…

A: Every substance has a definite boiling point. When a liquid is heated, then at a particular…

Q: OT₂ > Ti Or, >₂ it cannot be determined O 7₁-7₂ Kinetic Energy Number of Molecules with a Particular…

A: Correct option is  E) T2>T1

Q: Mention some uses of Thermodynamics and Calorimetry in society.

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Q: 3.A 33.3 g hot piece of metal at 450K is placed in pure water that has a volume of 155.0 mL which…

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Q: 2) Find the molality of NaCl in solution e Equation editor here to show all your work! You can copy…

A: 2. Given that, The mass of the empty 100 mL beaker = 47.231 g. The mass of the beaker + distilled…

Q: The group wanted their water cooled when they took the water out from the thermos flask. They…

A: We may apply the idea of energy conservation to determine the equilibrium temperature. The heat that…

Q: access the section in your e Text. Part A Suppose that 1.05 g of rubbing alcohol (C, Hs O)…

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Q: 2. Calculate the energy required in kJ to raise the temperature of 2kg of water fror 10°C to 90 °C.

A: Water remains in liquid phase at both temperature - 10 and 90 degree Celsius.

Q: 0.700 moles of an unknown solid is placed into water to make 150.0 mL of solution. The solution's…

A: When solid is placed in solution, temperature of solution decreased, that means solid absorbed heat…

Q: Identify each of the changes as either path dependent or path independent. Path dependent Path…

A: The heat and work changes are path dependent. Volume and internal energy changes are path…

Q: 9.91 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70 °C.…

A: Please find your solution below : Enthalpy of dissolution is defined as the change in enthalpy…

Q: Calculate the kinetic energy, in J/mol, of 1.00 mol of gaseous water molecules at the boiling point…

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Q: What is the minimum amount of energy required to heat 145 grams of water to the boiling point of…

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Q: Suppose you have 500.0 grams of room temperature water (20 degrees Celsius) in a thermos. You drop…

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Q: Which is NOT an example of an endothermic change?     melting      sublimation      freezing…

A: In Endothermic process heat is absorbed to perform that process.

Q: n 4.5 dl of Ethanol with a temperature of 37 ° C, add an ice cube of water. The ice cube weighs 78 g…

A: Heat energy involved in a process is given by the equation  Q = m c (T2 - T1) where, Q=heat energy ,…

Q: 1.If your temperature changes from 20oC to 25oC—how much change is there in the mass of a 10.00 mL…

A: 1. Initial temperature(T1) = 20°C                              Final temperature(T2) = 25°C Initial…

Q: What is the final temperature when a 5.0 g sample of brass initially at 25 oC absorbs 75 J of heat?…

A: Equation for finding the heat absorbed by brass is as follows. Q=mc∆TQ=heat absorbed by brassm=mass…

Q: It requires ____ kJ of heat to boil 7.5 grams of methanol (CH3OH) at its boiling point. The ΔHvap of…

A: We need to calculate amount of heat required to boil given quantity of methanol at its boiling…

Q: A cup of ice water is placed on the counter. The temperature of the mixture is O C. After 15 minutes…

A: Given, ice water  on the counter & After 15 minutes, there is still ice remaining.

Q: Which is better for removing ice in sidewalks during winter: NaCl or CaCl2? with calculations.

A: Calcium Chloride (CaCl2) is always, definitely, best source is removing ice from sidewalks. We can…

Q: 22. How many calories of energy are needed to raise the temperature of 87.g of water from 0 to 212…

A: The heat required to raise the temperature of the substance is directly proportional to the…

Q: 4. How many joules are required for each of the following changes? a. heating 65 g of water from 12…

A: We know that  q= mc∆T q= ∆H×m ∆H fusion= 334j/g ∆H vaporisation= 2260j/g

Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The…

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Q: Phosphorus pentachloride decomposes according to the chemical equation…

A: First we would calulate initial concentration of PCl5 and draw an ICE table. Then using Kc…

Q: Which of the following statements is (or are) correct for CO2 (carbon dioxide)? a) The supercritical…

A: a) only is correct.

Q: A) When the enthalpy of the products is greater that the enthalpy of the reactants, the reaction....…

A: In an endothermic process the total enthalpy of products is greater than the reactants.

Q: The next balance takes place in a rigid container. PCl5(g) ⇔ PCl3(g) + Cl2(g)        ΔH=56 kJ…

A: We have been given an equilibrium reaction.Reactants are present on left hand side and products are…

Q: 1. (CH3);CCI, AICI, 2. CH;CI, AICI; 3. KMNO4, NaOH, heat 4. H, O+

A: Solution: Friedel Craft alkylation reaction: When alkyl halide treated with aromatic compounds (…

Q: Match the unit with the quantity it measures: mmHg cL k g mm match the above unites the…

A: The given quantities are matched with their unit in the table in the next step.

Q: The specific heat of mercury is 0.140 J/g°C. Calculate the heat necessary to raise the temperature…

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Q: What is the thermochemical equation for the formation of 1 mole of liquid carbon tetrachloride

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Q: 5. A substance is more soluble in cold water than in hot water so: a. The enthalpy of the solution…

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Q: What is the thermochemical equation for the formation of 1 mole of gaseous hydrogen iodide

A: Heat of formation, also called standard heat of formation, enthalpy of formation, or standard…

Q: Given the following equations, find the AHºf of one mol of HCI from its elements. Show the balanced…

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Q: When 50. g of solid carbon dioxide (dry ice) sublimes 28.6 kJ of heat are required. How much heat…

A: This problem is solved by means of the rules of unitary method.

Q: number of kcal

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Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The…

A: Q = mc∆T

Q: The pressure of a gas is measured as 60. torr. Represent this pressure in atmospheres

A: We have to convert 60 torr pressure to pressure in atm  Given 1 atm = 760 torr)

Q: 4. When can a process be considered endothermic or exothermic? 5. Explain why water is considered an…

A: 4.  A reaction is classified as endothermic and exothermic based on it's heat absorption and…

Q: Determine ΔHsolute for KBr if the ΔHsolution (KBr) = +19.9 kJ/mol and the ΔHhydration(KBr) = -670.…

A: The enthalpy for the solute or lattice energy, ΔH solute or lattice, is calculated as shown below.

Q: For a process at constant pressure, 6.20 x 10* calories of heat are released. This quantity of heat…

A: Inorder to convert kilocalorie to joule, multiply the energy value by 4184. So, 1 kcal = 4184 J 1…