It is a quantity of heat need to convert  a mole of liquid into gas phase at a specified temperature? a. molar enthalpy  of vaporization b. molar enthalpy of boiling c. molar enthalpy of freezing d. molar enthalpy of evaporation

Q: how much heat is required to heat 38 g of steam form 115 C to 120 C?

A: A numerical problem based on heat energy required, which is to be accomplished.

Q: What is the temperature in deg C of 2 L water at 30 C after 500 cal of heat have been added to? a.…

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Q: How many calories of heat are needed to increase the temperature of 55 g of ethanol from 18 °C to 48…

A: Given,  55 g of ethanol from 18 °C to 48 °C

Q: 4. a. One liquid has a temperature of 140°F and another liquid has a temperature of 60°C. Are the…

A: Temperature of first liquid = 140°F Temperature of second liquid = 60°C

Q: Dissolution is an endothermic process when 100 mL of water dissolves 5 grams of a solid compound.…

A: Dissolution is a endothermic process when 5g solid is dissolved into 100 ml of water.  Direction of…

Q: 1. How much heat (in kJ) will be absorbed by a 28.3 g piece of aluminum (specific heat = 0.930…

A: Hello, since your question has multiple parts, we will solve the first question for you. If you want…

Q: Specific Heats of Substances Substance Specific Heat (cal/g⋅°C) Brick 0.20 Ethanol 0.58…

A: The concept is based upon specific heat capacity which may be defined as the amount of heat energy…

Q: A 10.1 g sample of NaOH is dissolved in 250.0 g of water in a coffee-cup calorimeter. The…

A: When NaOH dissolved in water it increases temperature of water because the dissolution reaction is…

Q: Which of the following statements is true? Specific heat capacity is dependent on the amount of the…

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Q: Is there a relationship between the final mass of the marshmallow and an increase in temperature of…

A: The relationship between the mass of burnt marshmallow and the change in the temperature of the…

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: A 34.30 g sample of solid lead is initially at 314.00°C. If the sample is heated at constant…

A: Heat flow from high temperature to low temperature. Use formula q= mc(T2-T1)

Q: A 44 gg piece of ice at 0.0 ∘C∘C is added to a sample of water at 8.0 ∘C∘C. All of the ice melts and…

A: Given: Mass of ice = 44 g. Initial temperature of ice = 0.0 oC All the ice melts. And the final…

Q: If a 348 g sample of steam at 127oC is cooled to 103oC, find the change in heat content of the…

A: NOTE : Since you've posted multiple questions,we've solved first question for you. If you want any…

Q: A thermos bottle containing milk is shaken vigorously. Consider the milk as the system. (a) Will the…

A: a) Temperature is directly proportional to kinetic energy. When the thermos bottle is shaken, the…

Q: A 27.24 g27.24 g sample of a substance is initially at 26.6 ∘C26.6 ∘C . After absorbing 496 cal496…

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Q: A 36.62 g sample of a substance is initially at 24.8 °C. After absorbing 1921 Jof heat, the…

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Q: What is specific heat capacity? A. The energy needed to change the temperature of a substance B. The…

A: specific heat capacity is defined as the amount of heat required to raise the temperature of a unit…

Q: Fill in the blank by the name of the definition: Heat of __________ is the quantity of heat…

A: Heat : Heat is the mode of transfer of energy from one system to another. It is due to the…

Q: How do heat and work affect the system

A: Heat and work are two unique methods of moving energy starting with one system then onto the next.…

Q: A 31.72 g31.72 g sample of a substance is initially at 21.0 °C.21.0 °C. After absorbing 1895 J1895 J…

A: The amount of heat energy required is related to specific heat capacity as,…

Q: A 49.12 g sample of a substance is initially at 27.2 °C. After absorbing 1995 J of heat, the…

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Q: Water changes from a liquid to a gas when heated to its boiling point because:Immersion Reader A)…

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Q: A 54.12 g sample of a substance is initially at 25.4 °C. After absorbing 1603 J of heat, the…

A: We know that, Q = mc∆T  Where,  Q = heat  m = mass  c = specific heat  ∆T = change in temperature

Q: Potassium nitrate, KNO3KNO3, has a molar mass of 101.1101.1 g/mol. In a constant-pressure…

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Q: Consider the following water and planetary data: Earth surface temperature: 20.0°C Mars surface…

A: Given: The surface pressure of mars and earth is 0.011 atm and 1.0 atm, respectively. The enthalpy…

Q: A 27.95 g27.95 g sample of a substance is initially at 27.7 °C.27.7 °C. After absorbing 1867 J1867 J…

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Q: How much heat (in kJ) is required to convert 49.6 grams of butane (C4H10) from an initial…

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Q: A 200.0 g of tin released 394 calories (cal.) of heat when cooled from 100.0°C to 24.5°C. What is…

A: Given information,    Mass of metal is 200.0 g,    Amount of heat released is 394 cal,…

Q: A 36.52 g36.52 g sample of a substance is initially at 21.6 °C.21.6 °C. After absorbing 1505 J1505 J…

A: Given, mass of substance m = 36.52 g amount of heat absorbs q = 1505 J initial temperature T1 = 21.6…

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: At 100 ° C, 1 mol of liquid water takes 19400 calories and under one atmosphere pressure, the same…

A: Change in internal energy is zero if temperature is constant because, internal energy is a function…

Q: A 51.76 g51.76 g sample of a substance is initially at 28.0 °C.28.0 °C. After absorbing 1755 J1755 J…

A: We have mass of sample as 51.76 g , initial temperature as 28°C, heat absorbed as 1755 J, final…

Q: The temperature of a substance is a measure of the average POTENTIAL energy of the particles.…

A: Given statement : Temperature of a substance is a measure of average potential energy of the…

Q: Calculate the amount of heat, in calories, that must be added to warm 21.6 g of wood from 21.9 "C to…

A: Heat is the form of energy that is transferred from one system to another system. It is denoted by…

Q: Which statement describes the effect of adding more energy to a system, assuming a phase change does…

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Q: Compare the enthalpy of a solid becoming part of a liquid solution and the enthalpy of gas becoming…

A: Enthalpies of different processes is to be compared.

Q: se Trouton's rule to estimate the enthalpy of vaporization for a substance whose boiling point is 80…

A: Given : Boiling point = 800C

Q: Sodium chloride is added in cooking to enhance the flavor of food. When 10.0 g of Na Cl are…

A: a. When the NaCl is dissolved in water we see that the heat is absorbed from the water in the…

Q: A 34.00 g sample of liquid n-pentane is initially at –18.50°C. If the sample is heated at constant…

A: To solve the above question we need the following information  delta Hvap(36.20 °C) = 357.6 J/g…

Q: The amount pf heat required to raise the temperature of a given amount of substance b by 1 degree…

A: To solve this problem we have to know about the given terms

Q: What is formed when gas is enclosed in a chamber then liquified under very high pressure? * What…

A: Answer-1 When a gas is liquefied in a closed chamber under very high pressure, particles will come…

Q: The heat of dissolution of a solid substance was determined using an insulated calorimeter…

A: Given: Weight of water = 150 g Initial temperature = 27.4°C Final temperature = 32.8°C Specific heat…

Q: A 39.60 g sample of a substance is initially at 23.9 °C. After absorbing 1521 J of heat, the…

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Q: 35.19 g sample of a substance is initially at 27.1 °C. After absorbing 1533 J of heat, the…

A: The heat absorbed or released by a substance is guided by its specific heatthe relation between heat…

Q: specific heat

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Q: A 20 g sample of ice at -10 °C is mixed with 100 g water at 80 °C. Calculate the final temperature…

A: Heat required by ice to convert into water at 0 oC = ms(Tf-Ti) + mLf…

Q: Using the specific heat data indicated for each question to calculate the amount of heat (in…

A: Specific heat “S” of a substance is generally defined as that heat amount which is needed to…