How much heat is absorbed by 68 g of ice when it melts? The heat of fusion of ice is 80. cal/g and the heat of vaporization of ice is 530 cal/g. Record your answer in units of calories, rounded to the nearest whole number. Do not write units in your answer.

Q: convert 457 calories to joules?

A: Given : Value in calories = 457 cal.

Q: Calculate the heat, in kilocalories, that is absorbed if 155 g of ice at 0.0 ∘C is placed in an ice…

A: We have given that Mass of ice (m) = 155 g Heat of fusion for water at 0°C =  L = 80 cal/g Specific…

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A: Given,Mass of water = 3kgInitial temperature = 14 degrees CelsiusFinal temperature= 53 degrees…

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A: Enthalpy change = -802 kj/mol Amout of heat required = - 249 kj

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A: The given temperature is 134°F.

Q: 1.If your temperature changes from 20oC to 25oC—how much change is there in the mass of a 10.00 mL…

A: 1. Initial temperature(T1) = 20°C                              Final temperature(T2) = 25°C Initial…

Q: PLS ANSWER THE FOLLOWING QUESTIONS

A: The solution is given below -

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A: To identify: 4 states of matter.

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A: .According to the question, high-performance heater that burns propane, C3H8(g), is adjusted so that…

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Q: How many calories 5000 Joules are?. No computation, no points

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A: Calculation as shown below

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A: To answer the following question.

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A: a) Given: Mass of ice = 132 g. Initial temperature of ice = 0.0 oC Volume of water = 1.64 L = 1640…

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A: Difference  between  chemical  change  and  physical  change.  Physical change is a type of change…

Q: 2.96×104 J  to Cal Express the value in Calories to three significant figures.

A: We know that, 1 Cal = 4.184 J  1 J = 1/4.184 Cal

Q: How much heat is absorbed by 77 g of ice when it melts? The heat of fusion of ice is 80. cal/g and…

A: Given that heat of fusion = 80 cal/g mass of ice = 77g

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A: Ek      =   ½mv2

Q: How much heat, in Joules, is absorbed by 54 g of water in order to increase in temperature from 18°C…

A: Given that:  Mass of water = 54 g Increase in temperature , t =  (55-18 )oC = 37 oC

Q: Identify each as a physical change (P) or a chemical change (C). Explain how you know this, or what…

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Q: Which action describes a chemical change caused by a change in temperature? O boiling an egg in a…

A: Option A is correct.

Q: Question attached

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Q: m Calculate the kinetic energy of a 67. g bullet moving at a speed of 499.

A: Given : mass of bullet = 67. g             speed = 499. m/s  To be calculated :- kinetic energy (J)

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Q: convert 531 J to calories

A: Energy can be expressed in different units such as Joules , ergs ,calories , electron volts ,…

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Q: How many kilocalories are lost when 580g of water cools from 67 degrees celsius to 22 degrees…

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A: It is not a physical change because chemical reaction is taking place between two liquids to give a…