Which is a correct statement about heat and temperature? А. О Heat and temperature are both forms of energy. B. O 100 g of water at 20 °C contains the same amount of energy as 200 g of water at 20 °C. С. О Heat and temperature are both a measure of the kinetic energy of the particles. D. O When 1.0 kg of water cools from 27 °C to 26 °C it gives out 4.2 kJ of heat. Which statements are correct about temperature? I. A rise in temperature of 1.0 °C is the same as a rise in temperature of 1.0 K. II. Both the degrees Celsius scale and the Kelvin scale are based on the temperature at which pure water melts and boils, III. Pure water boils at 100 °C and 373 K at 100 kPa (1 atmosphere) pressure. A. O Il and III B. O I and III only С. О I, Il and III Land II only
Which is a correct statement about heat and temperature? А. О Heat and temperature are both forms of energy. B. O 100 g of water at 20 °C contains the same amount of energy as 200 g of water at 20 °C. С. О Heat and temperature are both a measure of the kinetic energy of the particles. D. O When 1.0 kg of water cools from 27 °C to 26 °C it gives out 4.2 kJ of heat. Which statements are correct about temperature? I. A rise in temperature of 1.0 °C is the same as a rise in temperature of 1.0 K. II. Both the degrees Celsius scale and the Kelvin scale are based on the temperature at which pure water melts and boils, III. Pure water boils at 100 °C and 373 K at 100 kPa (1 atmosphere) pressure. A. O Il and III B. O I and III only С. О I, Il and III Land II only
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.90PAE: 9.90 Many engineering designs must incorporate ways to dissipate energy in the form of heat. Water...
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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.
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Transcribed Image Text:Which is a correct statement about heat and temperature?
A. O Heat and temperature are both forms of energy.
B. O 100g of water at 20 °C contains the same amount of energy as 200 g of water at 20 °C.
C. O Heat and temperature are both a measure of the kinetic energy of the particles.
D. O
When 1.0 kg of water cools from 27 °C to 26 °C it gives out 4.2 kJ of heat.
Which statements are correct about temperature?
I. A rise in temperature of 1.0 °C is the same as a rise in temperațure of 1.0 K.
II. Both the degrees Celsius scale and the Kelvin scale are based on the temperature at which pure water melts and boils.
III. Pure water boils at 100 °C and 373 K at 100 kPa (1 atmosphere) pressure.
A. O Il and III
В.
I and II only
С. О
I, Il and III
D. O
I and II only
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