please just answer number 38.. NUMBER 38 ONLY PLSS 38. How much heat (in kJ) is required to heat this kettle from 23°C to 99°C ifit contains 1.25 L of water (density of 0.997 g/mL and a specific heat of4.184 J/g C)? *467.86 kJ349.7 kJ521.4 kJ307 kJ For 36-38. An aluminum kettle weighs 1.05 kg. What is the heat capacity ofthe kettle? *0.522 J/g°C0.385 J/g°C4.184 J/g°C0.897 J/g°C37. How much heat is required to increase the temperature of this kettlefrom 23°C to 99°C? *41,650 J30,723 J71,580 J333,883.2 J

We have to calculate heat required to heat kettle from 23°C to 99°C, having 1..25L water

Answered: 3. How much heat (in kJ) is required to…

3. How much heat (in kJ) is required to heat this kettle from 23°C to 99°C contains 1.25 L of water (density of 0.997 g/mL and a specific heat of 184 Jlg°C)? *

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.77PAE

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Concept explainers

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.

Question

100%

please just answer number 38.. NUMBER 38 ONLY PLSS

38. How much heat (in kJ) is required to heat this kettle from 23°C to 99°C if
it contains 1.25 L of water (density of 0.997 g/mL and a specific heat of
4.184 J/g C)? *
467.86 kJ
349.7 kJ
521.4 kJ
307 kJ

For 36-38. An aluminum kettle weighs 1.05 kg. What is the heat capacity of
the kettle? *
0.522 J/g°C
0.385 J/g°C
4.184 J/g°C
0.897 J/g°C
37. How much heat is required to increase the temperature of this kettle
from 23°C to 99°C? *
41,650 J
30,723 J
71,580 J
333,883.2 J

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