f the heat of vaporization of water is 539.5 calories per gram, how many calories of heat are needed to vaporize 1.41 kilograms of water.  Express your answer in calories.

Q: How many calories of heat energy are released when 50 grams of water is cooled from 70°C to 60°C?

A: This problem can be solved using the formula Q = mC∆T  Where, Q = heat released or absorbed by water…

Q: How many calories are needed to raise the temperature of 89 g of water 2°C?

A: Here we have to apply the formula for heat  mass = 89g

Q: Which of the following is true about enthalpy changes when a salt dissolves in water? if the…

A: Enthalpy of the reaction changes when heat is absorbed or released from the reaction.

Q: Perform the conversions between energy units. 6.00×102 kJ=__________ J 2585 kcal= ____________ kJ…

A: According to the unit conversion, 1 kJ is equal to 1000 J. Thus, the conversion into J is shown…

Q: Water has a heat of fusion of 80.0 calories per gram .  If I have 8.62 grams of ice at its melting…

A: Answer

Q: When NH4CI is added to water, the resulting solution feels cool to the touch. Which best describes…

A: At a particular temeprature the amount of heat energy released (or) obserbed when 1 mole of solute…

Q: 3. Is solid → liquid → gas an endothermic or exothermic process? Describe how this energy change…

A:

Q: how many grams of water  would require 2.20 x 104 calories of heat to raise its temperature from…

A: Using formula for specific heat we have solved this problem.

Q: How many calories are required to increase the temperature of 13g of alcohol from 11 degrees celsius…

A: q = mc∆T Where q = heat required  c = specific heat  ∆T = change in temperature

Q: hen 1.0 gg of gasoline burns, it releases 11 kcal of heat. The density of gasoline is 0.74 g/mLg/mL.…

A: Given : Energy = 11Kcal. Amount of gasoline = 1.0 gallon.

Q: If 44.8 kJ of heat were added to 166 g of liquid water (specific heat of 4.184 J/g °C) at 18 °C, how…

A:

Q: How much heat is absorbed by 68 g of ice when it melts? The heat of fusion of ice is 80. cal/g and…

A: 1) Mass of Ice is (m)=68 g 2) The heat of fusion of ice is (L)=80 cal/g

Q: How many calories (cal) are needed to warm 25 g of water from 65 ̊C to 92 ̊C. specific heat of water…

A: Heat capacity of water is 1.00 cal/g˚C Heat required to convert 25 g of water from 65˚C to 92˚C can…

Q: The temperature of a beaker containing 194 mL (density of water is 1 g/mL) of water changes from 16…

A:

Q: A certain physical process requires 36.00 kilojoules (kJ) of heat.  Convert this quantity to…

A: Given : Energy in KJ = 36.00 KJ

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: The figure above shows a liquid of diatomic bromine in equilibrium with its vapor. Compare the…

A: A question based on chemical bonding, which is to be accomplished.

Q: A solution is made by mixing 197.3 g of ethanol initially at 10.5°C with 250.0 g of water initially…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: How many joules of heat are absorbed when 1000g of water is heated from 18oC to 85oC? The specific…

A: We have to find how many joules of heat are absorbed when 1000g of water is heated from 18oC to…

Q: the recommened caloric intake for a 20-year-old women is 2000. How many calories should her…

A: Total reccomend daily intake of calories 2000 and require percentage is 45%  So percentage = given…

Q: How much heat, in joules, must be added to a 95.8 g iron block with a specific heat of 0.509 J/g °C…

A:

Q: How much heat, in calories, must be added to a 102.0g iron block with a specific heat of 0.449 J/g…

A:

Q: When 20 calories of heat is added to 2.0 grams of water at 15 degrees Celsius the temperature of…

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Q: Titanium (Ti) was heated to a temperature of 35 °C. If the initial temperature of 35.0 g of Titanium…

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Q: It took 2.500 × 10³ J to raise the temperature of a sample of water from 16.7 °℃ to 36.3 °C. Convert…

A: The objective of the question is to convert the energy in Joules to calories. In the field of…

Q: 54 g of a certain metal (with a specific heat = 0.085 cal/g C) at 98 C was placed in 80mL of water…

A: The objective of the question is to find the final temperature of the water and the metal when they…

Q: 3. Ba(OH)26) + heat -

A:

Q: a serving of Doritos contains 150 total calories of which 70. Calories come from fats in the chips.…

A:

Q: The process of liquid water forming from water vapor is an: Endothermic process, because energy is…

A: The process of liquid water forming from water vapor is done by the process which is known as…