PΣ* 00工BCalculate the amount of heat, in calories, that must be added to warm 62.9 g of wood from 20.8 °C to 46.1 °C. Assume nochanges in state occur during this change in temperature.calheat added:Which substance requires the greatest input of heat energy?O brickpooMO ethanolF11F12F10F8F765F608F5F3*$}{RK>Ncommandoption BTion 5 of 25Attempt 2Specific Heats of SubstancescalSubstanceSpecific HeatDoBrick0.20Ethanol0.580.10Calculate the amount of heat, in calories, that must be added to warm 62.9 g of brick from 20.8 °C to 46.1 °C. Assume nochanges in state occur during this change in temperature.heat added:calCalculate the amount of heat, in calories, that must be ådded to warm 62.9 g of ethanol from 20.8 °C to 46.1 °C. Assume nochanges in state occur during this change in temperature.heat added:calCalculate the amount of heat, in calories, that must be added to warm 62.9 g of wood from 20.8 °C to 46.1 °C. Assume nochanges in state occur during this change in temperature.114%244.}]YKHN

The amount of heat energy needed to rise the temperature of 62.9 grams of wood from 20.8 oC to 46.1…

Answered: Calculate the amount of heat, in…

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter6: Thermochemistry

Section: Chapter Questions

Problem 104AE

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When 50.0 g of 0.200 M NaCl(aq) at 24.1 C is added to 100.0 g of 0.100 M AgNO3(aq) at 24.1 C in a calorimeter, the temperature increases to 25.2 C as AgCl(s) forms. Assuming the specific heat of the solution and products is 4.20 J/g C, calculate the approximate amount of heat in joules produced.
Nitrogen gas is confined in a cylinder with a movable piston under a constant pressure of 9.95 104 Pa. When 695 J of energy in the form of heat is transferred from the gas to the surroundings, its volume decreases by 1.88 L. What is the change in internal energy of the gas?
To make a glass of iced tea, you pour 250 mL of tea, whose temperature is 18.2 C, into a glass containing five ice cubes. Each cube has a mass of 15 g. What quantity of ice will melt, and how much ice will remain floating in the tea? Assume iced tea has a density of 1.0 g/mL and a specific heat capacity of 4.2 J/g K, that energy is transferred only as heat within the system, ice is at 0.0 C, and no energy is transferred between system and surroundings.
In earlier times, ethyl ether was commonly used as an anesthetic. It is, however, highly flammable. When five milliliters of ethyl ether, C4H10O(l)(d=0.714g/mL), are burned in a bomb calorimeter, the temperature rises from 23.5C to 39.7C. The calorimeter contains 1.200 kg of water and has a heat capacity of 5.32 kJ/C. (a) What is qH2o? (b) What is qcal? (c) What is q for the combustion of 5.00 mL of ethyl ether? (d) What is q for the combustion of one mole of ethyl ether?
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Peanuts and peanut oil are organic materials and bum in air. How many burning peanuts does it take to provide the energy to boil a cup of water (250 mL of water)? To solve this problem, we assume each peanut, with an average mass of 0.73 g, is 49% peanut oil and 21% starch; the remainder is noncombustible We further assume peanut oil is palmitic acid, C16H32O2, with an enthalpy of formation of 848.4 kJ/mol. Starch is a long chain of C6H10O5 units, each unit having an enthalpy of formation of 960 kJ.
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Calculate the amount of heat, in calories, that must be added to warm 62.9 g of wood from 20.8 °C to 46.1 °C. Assume no changes in state occur during this change in temperature. heat added: cal Which substance requires the greatest input of heat energy? O brick