Find the amount of heat energy needed to convert 400 grams of ice at -38°C to stearn at 160°C.

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: The heat of fusion of water is 79.9 cal/g, the heat of vaporization of water is 540 cal/g, and the…

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Q: What quantity of heat in kJ is required to melt 2kg of iron? The temperature increases from 1809°C…

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Q: Consider the heating curve for water below. Temperature (°C) 150- 100- 50- -50- 0 1 2 Heat Added…

A: The heating curve for water shows how the temperature of a given quantity of water changes as heat…

Q: How much heat in kJ is required to convert 916 g of ice at-11.0°C to liquid water at 99.0°C? 706

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Q: Please provide detailed solution and give the explanation of the concept

A: The heat required to raise the temperature of a substance can be calculated using the formula: q = m…

Q: How much heat (in kJ0 is evolved in converting 2.00 mol of steam at 132 degree Celsius to ice at…

A: To calculate the heat evolved in converting 2.00 moles of steam at 132°C to ice at -48°C, we'll need…

Q: calculate total amount of heat needed to change 750g of ice at -10C into 750g of water at 84C

A: In order to calculate the amount of heat needed to change the given sample of ice to water of the…

Q: How much heat (in kJ) would be required to convert 11.0 g of ice to water at 0.00°C? (∆Hfus = 6.01…

A: Since ice is solid and water is liquid, phase change takes place from solid to liquid and called…

Q: How much heat is absorbed when 10.0 grams of ice initially at -30.0ºC is heated and completely melts…

A: Since in the above process, two steps are happening 1) heating of ice from -30.0 ºC to 0 ºC  2)…

Q: How much heat energy is required to melt 15.2 moles of ice? ΔHfusion= 6.01 kJ/mol

A: Enthalpy of fusion: It is the energy required for a specific quantity of the substance to change its…

Q: Calculate the heat required to convert 13.2 g of ice at –12°C to steam at 105°C.

A: For given question there is need to determine heat required for 13.2 g of ice to transform from -12…

Q: List the Properties of Liquid Crystals?

A: The properties of Liquid crystals have to be listed.

Q: Calculate the amount of heat needed to melt 146. g of solid hexane and bring it to a temperature of…

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Q: Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed…

A: Givenmass of H2O = m =20.00 g,initial temperature = -3.75 oC,final temperature =0.600 oC,specific…

Q: What quantity of heat (in kJ) would be required to convert 14.1 g of ice to water at 0.00°C? (∆Hfus…

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Q: How much energy (heat) is required to convert 72.7 gram of ice at -12.0 ° C to steam at 125 ° C?

A: Mass of ice = 72.7gram Temperature of change of ice to steam -12.0°C to 125°C  We have calculate…

Q: How much heat is needed to raise 63.0 g of ice from  – 10  oC to water at 50 oC at 1 atm?

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Q: why 15 grams of steam at 100oC melts more ice than 15 grams of liquid water at 100oC.

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Q: What quantity of heat (in kJ) would be required to convert 23.1 g of ice to water at 0.00°C

A: When ice is converted to water at 00 C then Latent heat is required . and Heat required = mL  where…

Q: 3. Calculate the energy released when 10.g of water at 20.0°C are converted into ice at -10.0°C. You…

A: The energy required to change the temperature of a substance is given by the formula q = m × c × ΔT,…

Q: total heat (in J)

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Q: How much heat is required to convert ice with a mass of 1.0 kg at an initial temperature of -25.0 °C…

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Q: a)How much heat is required to convert 13.0 g of ice at -10.0 ∘C to steam at 100.0∘C? Express your…

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Q: How much energy as heat must be delivered to 15 grams of ice at -15oC to warm the ice to liquid…

A: Given, Mass of ice, mice  = mass of water, mw = 15 g Initial temperature, Ti = -15 °C Final…

Q: Calculate the amount of energy needed to make 600 grams of ice at 0oC become water at 0oC.

A: Latent heat of ice = 80 cal/g Given mass of ice = 600 g

Q: How much heat (in kJ) would be required to convert 21.0 g of ice to water at 0°C?

A: Concept: The branch of chemistry that deals with the structure, properties and the reaction of the…

Q: How much energy is required to melt 135 grams of frozen ethanol? Ethanol heat of vaporization is…

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Q: If we start with 10g of ice at -5°C and heat it until we have liquid water at 45°C, how much heat…

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Q: How much heat energy is required to melt 9.65 moles of Ice? A Huston= 6.01 kJ/mol

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Q: Calculate the amount of heat required to convert 200.0 grams of ice at -40.0°F to steam at 226°F

A: the amount of heat released can be found out by taking the product of mass of substance and change…

Q: How much heat is required to turn a 1 kg cube of ice at -10°C to steam at 110°C?

A: The heat is consumed in the following ways: 1. Heat required to convert 1 kg (1000 g) ice at -10°C…

Q: How much heat is required to convert 40.0 g of ice at -10.0 oC to 100.00 oC? The specific heat of…

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Q: How much energy (in kJ) is needed to convert 50.0 g of ice at -10.0 ºC to liquid water at 0.0 ºC?

A: M=50 gm=0.05kg  we raise the temperature of 0.05kg of ice at -10C to 0C. The heat capacity of ice,…

Q: How many calories of heat are required to melt 14 grams of ice at 0 0C?

A: The enthalpy change for melting ice is called the entlaphy of fusion. Its value is 6.02 kj/mol. This…

Q: How much energy is required to raise the temperature of 20 grams of ice from -10°C to steam at…

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Q: express in four decimal places. How much heat is required to convert 40.0 g of ice at -10.0 oC to…

A: Thermodynamics is branch of chemistry in which we deal with heat of reaction gained or lost to…

Q: AH, = +6.01 kJ/mol fus AH +40.7 kJ/mol -2.01 J/g'C -4.18 J/g°C Cater Saeam 2.02 J/g C Time (min)…

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Q: When 30 kJ of heat is removed from 1400g of ice initially at -10oC, its temperature becomes

A: 30KJ heat is removed from the ice. So it will have a negative sign. So we will consider the heat…

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.