How much energy is needed to convert 64.0 g of ice at 0.00 oC to water at 75.0 oC? Specific heat (ice) = 2.10J/goC Specific heat (water) = 4.18 J/goC Heat of fusion = 333 J/g Heat of vaporization = 2258 J/g Freezing point of water = 0.00oC

Q: Just enough ice at 0°C was added to 47.5 g of water at 28°C to cool the water to 0°C. About how much…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Calculate heat change in joules for vaporization of 3.00 g of water at 100 ∘C∘C.

A: Heat of vaporization: The amount of heat required to convert 1g liquid into vapor. Heat vaporization…

Q: Calculate the heat required to vaporize 102 g of water at a temperature of 100oC   if the Heat of…

A: The process of conversion of a substance in its liquid state into its gaseous state is called…

Q: Calculate the heat in kJ for 9.98 g of ice at -10.0 °C cooled to -75.0 °C with a specific heat…

A: Specific heat capacity of a substance is the heat capacity of a sample of the substance divided…

Q: A 10-g ice cube, initially at 0ºC, is melted in 100 g of water that was initially 20ºC. After the…

A: Hello. Since the question contains multiple parts the first part is solved. In case the solution for…

Q: How much heat is emitted when 4.38 g of water condenses at 25∘C? The heat of vaporization of water…

A:

Q: How much energy in kJ would it take to heat up 25.23 g of water at 35 degrees C until it completely…

A: By help of specific heat of water, we can determine the energy -   Q = m C ∆T    where - Q = Heat…

Q: Which processes absorb heat? vaporizing 65.0 mL of water freezing 12.5 g of water condensing 90.0 mL…

A: When solid changes to liquid or gas, it will require energy, and hence heat is absorbed.  When a…

Q: How many joules of energy must be removed from 172 g of water at 27.1 °C to form ice at 0 °C?

A: Specific heat of substances.

Q: 8) If the heat of fusion for water is 80. cal/g, how many calories are needed to melt 45.0 g of ice…

A: The heat of fusion for water is 80 cal/g. It is required to calculate the calories needed to melt 45…

Q: What mass of steam initially at 130 °C is needed to warm 200. g of water in a 100. g glass container…

A:

Q: 13. How much heat is absorbed if 45 grams of sweat is evaporated from someone's skin? AHvap for…

A: Given,  The heat is absorbed for evaporation of 45 grams of sweat from skin is: The DHvap = 2.41…

Q: The heat of vaporization of a liquid is 1344 J/g. What is the minimum number of joules needed to…

A: Given Mass = 40 g Heat of vaporization = 1344 J

Q: How much energy in kilojoules is needed to heat 5.00 g of ice from -10.0 °C to 30.0 °C? The heat of…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: How much heat energy, in kilojoules, is required to convert 77.0 g of ice at −18.0 ∘C to water at…

A: Specific heat of ice (Cp) = 2.10 J/g. oC specific heat of water (Cp) = 4.18 J/g. oC heat of fusion…

Q: How much heat is required to melt 175g of ice at 0℃? Hf = 334 J/g ; Hv = 2260 J/g

A:

Q: Ethanol (C2H5OH) melts at −114 ∘C and boils at 78 ∘C. The enthalpy of fusion of ethanol is 5.02…

A: Given Mass of ethanol = 40.5 g Initial temperature =  34 ∘C  Final temperature =  78 ∘C Ethanol…

Q: Calculate the amount of energy needed to change 10 g of solid mercury at its melting point to…

A:

Q: How much heat (in joules) must be added to change 20.0g of H2O(s) at -10 degrees C to steam at 110…

A: Heat for changing the state of water from ice at – 10 C0 to 0 C0 can be determined as:Q1 = m s dT=…

Q: How much energy in kilojoules is needed to heat 3.00 g of ice from -14.0 °C to 25.0 °C? The heat of…

A:

Q: 1. Calculate amount of heat that must be absorbed by 10.0 gram of ice at 20 degrees Celsius to…

A: Since you have posted multiple question, the answer for first question is given below. Kindly repost…

Q: 3. What mass of water would need to evaporate from your skin in order to dissipate 1.7X10 J of heat…

A: Please find your solution below : Calorimetry is a branch of science that measures the change in…

Q: How much energy is needed to convert 54.9 grams of ice at 0.00°C to water at 75.0°C? specific heat…

A: concept is based on thermochemistry of phase changes

Q: When 4.61 grams of ice at – 20°C have absorbed 2500 calories of heat, what is the temperature of the…

A: Latent heat is the amount of energy that is required by a phase to convert itself from solid to…

Q: A 37.0 g sample of ice is held at -12.0 °C. If the ice absorbs 25800 J of heat, what state and…

A: We can determine the final state of the water from the final temperature.  The formula is : q = m ×…

Q: How much heat is needed to convert 35.6g of ice at 0°C to water at 27°C? AHfus of ice = 6.01 kJ/mol…

A: Heat required = Raise the temperature from 0 oC to 27 oC  Q = mc delta T

Q: In an electric freezer, 400 g of water at 18°C is cooled, frozen, and the ice chilled to -5.0 °C. If…

A: Assuming no heat is lost to surroundings  Hence the heat gained by the Freon will be equal to the…

Q: How much heat is necessary to change 565 g of ice at -5°C to water at 20°C?

A: Given,Mass of ice = 565g.Initial temperature = -50C.Final temperature = 200C.

Q: A 45.0 g chunk of ice at -12°C absorbs 12.0 kJ of heat. How many grams of ice melt? sp heat of ice…

A: Ice is at -12°C and it can not melt at this temprature For ice to melt temperature should be 0°C…

Q: Is the amount of latent heat associated with the process of deposition the same as or less than the…

A: Latent heat can be defined as the heat energy that required to convert a solid into a liquid or…

Q: How many joules of heat are absorbed then ice is heated from -15.6 °C to-1°C, the specific heat of…

A: Q = 462.966 J

Q: Calculate the total energy in kJ required to change the temperature of 591 g water from 96.0 °C to…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: Calculate the heat, in kilocalories, that is absorbed if 149 g of ice at 0.0 ∘C is placed in an ice…

A: Given data,  Mass of ice (m) = 149 g  Heat of fusion for water (lf) = 80 cal/g = 334 J/g Specific…

Q: How much energy is absorbed or released when 2.30 moles of water (4.184 J/g°C) cools from its normal…

A: Given: Moles of water = 2.30 moles. Specific heat capacity of water = 4.184 J/g C∘. We have to find…

Q: Which of the following does NOT represent a step on the heating curve of water?

A:

Q: How much heat is needed to convert 36.5g of ice at 0°C to water at 66°C? ΔHfus of ice = 6.01 kJ/mol…

A: given, mass of Ice = 36.5 g Initial temperature (Ti) = 0°C Final temperature (Tf) = 66°C Note: molar…

Q: Calculate the heat required to increase the temperature of 630 grams of ice from -2°C to 23°C and…

A: A numerical problem based on thermochemistry that is to be accomplished.

Q: Olive oil lowers “bad” (lower density lipids). Olive oil melts at -6.60 0C and boils at 300.00 0C.…

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: The specific heat of liquid thallium, TI, is 0.13 J/g C. The heat of fusion of thallium is 4.29…

A:

Q: How much heat energy, in kilojoules, is required to convert 80.0 g of ice at −18.0 ∘C to water at…

A: Heat (q) is absorbed to convert ice to water.Here, we have to calculate the total heat consumed in…

Q: What is the total amount of heat released in kilojoules when 28.0 g water at 65.0°C cools to form…

A: Given: Mass of water = 28.0 g. Initial temperature of water = 65.0 oC And final temperature of water…

Q: Calculate the heat required to convert 15 g of ethyl alcohol (C2H6O) from a solid at -135° c to a…

A: Melting and vaporisation both are endothermic process which means heat is absorbed by the ethyl…

Q: How much energy is required to melt 553 g553 g of ice into liquid water at 0 ∘C?0 ∘C? The heat of…

A: Total energy required= mXL m= mass of ice = 553g L=heat of fusion= 333.6 J/g

Q: A normal size ice cube has a mass of 50.0 g. How much energy will it take to melt the ice and then…

A:

Q: Calculate the amount of heat that must be absorbed by 24.0 g of ice (-15°C) to convert it to water…

A: Given, Mass of ice = 24.0 g Initial temperature (Ti) of ice = -15°C Final temperature of (Tf) of…

Q: What is the amount of heat in kilojoules required to convert 447.0 g of ice at −15.2°C to liquid…

A: Given, Mass of ice = 447.0g. Temperature of ice = -15.2oC. Temperature of water = 35.6oC. Specific…

Q: How many joules of heat are absorbed then ice is heated from -15.6 °C to -1°C, the specific heat of…

A: In this question, we will determine the value of heat in J unit absorbs by ice. How we can…

Q: How much heat is required to vaporize 30 g of water at 100˚C?

A:

Q: How many joules are needed to vaporize 125 g of liquid water at 100°C? The latent heat of…

A: Given, Mass of liquid water = 125 °C Latent heat of vaporization = 2258 J/g Amount of heat (in…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.