Calculate the heat change in kilocalories for melting 140 gg of ice at 0 ∘C∘C.

Q: Calculate the heat change in kilocalories for vaporization of 49 g of water at 100° C.

A: We know:

Q: How much heat would need to be removed to cool 50.3 g of water from 25.6°C to -10.7°C?

A:

Q: How much energy is required to raise the temperature of 10.8 grams of solid chromium from 21.5…

A: According to thermodynamics: q=mc∆T                  . . . (1) Here, m is the mass = 10.8 g c is the…

Q: How many joules are needed to boil 28.1 g of water if the heat of vaporization is 2256 J/g? . If you…

A:

Q: 500.0 g of water in its liquid phase loses 5,892 J of heat. If it started at a temperature of 25.0…

A: We have given that  The mass of water = 500g  Heat release in liquid phase = 5892J  Initial…

Q: The sum of the heats of fusion and vaporization of that substance at the same temperature. A. Heat…

A: Heat is a form of energy which can be transferred between any substances or systems which are…

Q: Calculate the energy needed to melt 3.0 g of ice at 0°C, heat it to boiling, boil it, and heat the…

A:

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: Calculate the heat change in joules for freezing 235 gg of water at 0 ∘C∘C.

A: Given that 235 g of water has to freeze at zero degree Celsius.The enthalpy of fusion for water is…

Q: The specific heat of silver is 0.24 J g°C . How many joules of energy are needed to warm 4.37 g of…

A:

Q: Calculate the heat change in calories for melting 65 g of ice at 0 ∘C

A: When ice melts, the physicals state changes from solid to liquid. The energy or the heat required…

Q: The specific heat of ice is 2.06 J/g°C.  Calculate how much energy is needed to heat a 52.0 gram…

A: The amount of heat energy required to raise the temperature of a substance can be calculated using…

Q: 5. How much heat must be,removed from 15.5 g of water at 90.0°C to cool it to 43.2°C? 30353

A:

Q: Which statement describes the transfer of heat energy that occurs when an ice cube is added to an…

A: When ice is added to water at 25°C

Q: Q5 How many kilojoules are required to melt 15 g of ice at 0 °C, and raise the temperature of the…

A: The solution is as follows:

Q: How many joules of heat are required to melt 4.5 g of copper at a temperature of 1083°C? Use the…

A:

Q: How much heat energy is lost when 8.00 moles of solid copper at an initial temperature of 300°C is…

A: The molar mass of copper is:- 64.546g/mol So the mass of 8moles of copper will be 516.368g.

Q: How much heat is needed to melt 1.43 grams of ice into water from -5.34 degrees C to 84.3 degrees C?

A:

Q: How much energy is needed to cause 5.0x104 g of ice to heat from -40 C to its melting point and then…

A: Matter around us exist in mainly three states, that is solid, liquid and gas. The matters change…

Q: How much heat is involved when an 100 g ice at 0 °C is heated to 80 °C? Specific heat of ice is 0.5…

A: Given: Mass of ice is 100 g. Specific heat of ice is 0.5 cal/g·°C. Temperature is heated from 0°C to…

Q: How much heat is needed to melt 23.8 g of copper that is at an initial temperature of 21.7 °C? The…

A: The heat of a solution can be expressed by the following formula   Q=mCΔT Q=heat m=mass C=heat…

Q: Calculate the heat change in calories for melting 95 g of ice at 0 ∘C.

A: Heat absorbed to convert solid substance to liquid form is called heat of fusion (dHfus).

Q: How much heat is required to warm 1.60 kg of sand from 24.0 degree Celsius to 100.0 degree Celsius?

A: Given data is as follows:     The mass of the sand = 1.60 kg = 1600 g The initial temperature of the…

Q: How many joules of energy must be removed from 175 g of water at 22.2 °C to form ice at 0 °C?

A: Mass of water = 175 g  Initial temperature = 22.2 °C  Final temperature = 0°C  The amount of energy…

Q: A 149-g sample of steam at 100 ∘C is emitted from a volcano. It condenses, cools, and falls as snow…

A: The emitted volcano at 1000C is 149 g. The heat of condensation = 2260 J/g =149 g x 2260 J/g= 336740…

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: 2. How much heat must be removed from 155 g of water to cool it from 92.3 °C to 21.6°C? 16

A: Given that the final temperature is 21.6 degree Celsius and the initial temperature is 92.3 degree…

Q: Calculate the heat change in calories for freezing 45 gg of water at 0 ∘C∘C.

A: Heat change in freezing of a substance is equal and opposite of heat change in melting of the…

Q: What is the total amount of heat released when 94.0 g water at 80.0 °C cools to form ice at −30.0…

A:

Q: The heat of fusion of gold is 63 J/g. Once a 25.0 g sample of gold has been heated to its melting…

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: How much heat is liberated when 50g of water is cooled from 100 ᵒ C to 20 ᵒ C

A: This can be solved as follows

Q: How much heat would need to be removed to cool 81.5 g of water from 25.6°C to -10.7°C?

A: Given that:  Mass of water (m) = 81.5 g  Initial temperature (T1) = 25.6°C Final temperature (T2) =…

Q: In joules, how much heat is released when 44.0 g of Ag cools from 199. to 129

A:

Q: Determine the quantity of ice required to absorb exactly 50kJ of energy when the ice warms from -50…

A: Given- Initial temperature = -50 oC Final temperature = 10 oC Energy absorbed by ice = 50kJ   To…

Q: How much heat is gained by Aluminum when 52.2 g of Al is warmed from 20.3D defrees Celsius to 35.1…

A: Given, mass of Al (m) =52.2 gInitial temperature T1 =20.3°CFinal temperature T2 = 35.1°Cspecific…

Q: Calculate the joules released when 175 gg of steam condenses at 100 ∘C∘C and the liquid cools to…

A: The heat in joules released is to be calculated when 175 g of steam condenses at 100 °C and then the…

Q: What change in energy is required to heat 55.00 g of water at 15.00 0C to vapor at 180.0 0C?

A: The quantity of heat transfers from one form to another is denoted as Q. Given the mass of…

Q: Calculate the heat change

A:

Q: How much heat, in joules (J), must be added to a 75.0-g iron block with a specific heat of 0.449 J/g…

A: Given: Mass of iron block =75.0 g Specific heat of iron =0.449 J/g oC Initial temperature(T1) =25 oC…

Q: 134% If you want to melt 81.1 g of antimony, how much energy do you need to add if the heat of…

A:

Q: How much heat is required to warm 2.07 kg of sand from 32.6 to 48.9 °C. The specific heat of sand is…

A:

Q: What amount of heat in Joules is required to raise the temperature 0f 10.0g of aluminum by 15.0…

A: The amount of heat Q required for increasing the temperature of a body of mass m by temperature ∆T…

Q: Determine the heat in kJ to heat 7.18 moles of ice from -29.286 degrees celcius to -2.357 degrees…

A: Mass can be determined using the below given equation,

Q: 3. Suppose you have two slices of cheese. They have the same specific heat, but one is twice the…

A: 3. Given that : We have two slices of cheese, one double the mass of the other, having the same…

Q: Calculate the amount of heat needed to boil 106. g of methanol (CH,OH), beginning from a temperature…

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific…

Q: Calculate the heat change in joules for vaporization of 9.00 g of water at 100 ∘C.

A: Heat of vaporisation of water is 2256 J/g/0C.Thus, when 1 mol ( 18 g) of water is vaporised, 2256…

Q: Calculate the heat change in kilojoules for freezing 30.0 g of water at 0 ∘C.

A: Heat change in freezing is equal and opposite of heat change in melting or heat of fusion (dHfus).…

Q: An ice cube tray holds 555 g water. If the water initially has a temperature of 31°C, how many…

A: Given, weight of water =555 g initial temperature,Ti=31°C final temperature,Tf=0°C