Heat required = Mass of copper layer * specific heat capacity of copper * temperature change = 125 g * ( 0.385 J/g 0C) * ( 325- 22) 0C = 14582 J = 14.582 kJ
( 1 kJ = 1000 J)
Required kilojoules = 14.582
Some cooking pan has a layer of copper on the bottom. How many kilojoules are needed...
Copper is a good conductor and has been incorporated into some cookware because it distributes heat quickly and evenly. If 909 calories of heat are needed to raise the temperature of a copper casserole pan from room temperature, 23.0 ºC to 176.67ºC (350ºF), what is the mass of the pan assuming it is made of pure copper. The specific heat for copper is 0.0900cal/g.ºC. Q = SH × m × ∆T ***(65.7 is not correct, answered by a previous Chegg...
A 950-g copper cooking pan absorbs 19 kJ of heat from the flame beneath it. By how much should the temperature change? (Ccu = 0.385 J/g•°C) Hint: You are solving for AT, not Tror Ti. -52 °C 0.052 °C CAT....What's AT 52°C -0.052 °C
Iron has a specific heat of 0.450 J/g C. How many kilojoules of heat is required to raise the temperature of a 100. g sample from 25.5°C to 40.0°C? - 3 pts
How much heat is required to raise an 820g copper pan from 12?C to 88?C if (a) the pan is empty; (b) the pan contains 1.1kg of water; and (c) the pan contains 4.5kg of mercury? ?Qa =? kcal ?Qb =? kcal ?Qc =? kcal
5. (15 pts) How much heat must be applied to a 1 kg pan to raise its temperature from 25°C to 185°C if: a. The pan is made of iron? b. The pan is made of copper? c. The pan is made of gold?
5. (15 pts) How much heat must be applied to a 1 kg pan to raise its temperature from 25°C to 185°C if: a The pan is made of iron? b. The pan is made of copper? c The pan is made of gold?
How many calories are needed to raise the temperature by one degree a)Celsius?,b)fahrenheit ?
Determine the mass of a pierce of copper where the heat needed to raise the temperature of the copper from 0°C to 110 °C was 293,000 J . The specific heat capacity of copper is 376 J per kilogram per degree Celsius. Answer in whole numbers and one decimal place in kg.
The specific heat capacity of solid copper metal is 0.385 J/gK. How many joules of heat are needed to raise the temperature of a 2.12-kg block of copper from 25.0°C to 88.0°C?
Chemistry
Please show complete work for the question
2.CALORIMETRY a) How many kiloJoules of energy are needed to raise the temperature of 1.50dm of water from 20.0°C to 47.0°c? b) The specific heats of three different liquid substances are listed as Carbon tetrachloride: 0.856 J/g'C Benzene: 1.74 J/g'C Acetic Acid: 2.05 An experimenter found that 1.42 kJ of heat energy raised the temperature of 19.70g of an unknown liquid substance by 36.4°C. What substance could this be? (Show all work)...