Homework Answers
1.Heat is form of an energy, temperature is the degree of hotness or coldness of a substance.Therefore (c) is correct option.
2.Latent heat is the amount of heat required to convert the state of a substance without any change of temperature.
Therefore (d) is correct option.
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QUESTION 1 The difference between heat and temperature is that O a. Temperature is measured in...
Physics Help. 1. The difference between heat and temperature is: none, there is no difference heat...
Physics Help.
1. The difference between heat and temperature is: none, there is no difference heat is only warm, while temperature can be both hot or cold temperature measures the avg kinetic energy of some molecules and heat is the energy that can raise that kinetic energy heat measures the avg kinetic energy of some molecules and temperature is the energy that can raise that kinetic energy 2. The kinetic energy of a two kilogram ball moving at 5 meters/second...
not the firsf picture. only the second QUESTION 1 Two glasses with equal quantities of water are at the same temperature. if the temperature of one is ralsed by 10 C and that of the other is...
not
the firsf picture. only the second
QUESTION 1 Two glasses with equal quantities of water are at the same temperature. if the temperature of one is ralsed by 10 C and that of the other is raised by 10K, which one will be hotter? O The temperature of the first glass is more than the second, as each degree on the Celsius scale equals 1.8 degrees on the Kelvin scale. - The temperature of first glass is more than...
solve The heat energy associated with a change in temperature that does not involve a change...
solve
The heat energy associated with a change in temperature that does not involve a change in phase is given by -msAT where q is heat in joules, mis mass in grams, s is specific heat in joules per gram-degree Celsius, J/(g·°C). and AT is the temperature change in degrees Celsius. The heat energy associated with a change in phase at constant temperature is given by where q is heat in joules, m is mass in grams, and ? H...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00 g of water from 300.0 K to 365.0 K. (Remember that one degree of Celsius contains the same amount of energy as one Kelvin.) 2. Determine the energy, in Joules, released as 1.00 kilogram of water cools from 72.0°C to 30.0°C. 3. 25.0 g of mercury are heated from 25.0° C to 155.0°C and absorbs 455 joules of heat in the process. Calculate the...
Learning Goal: To understand specific heat and heat of transformation and how they are related to...
Learning Goal: To understand specific heat and heat of transformation and how they are related to temperature versus time graphs Energy can be added to a system either by doing work w an it or by adding heat tot Energy transfer by work equires a force to act through some distance Energy ansfer in the form of heat occurs between objects that are different temperatures with onergy spontaneously aveling from the higher temperature object to the lower mperature one. When...
I need help with these two 1 The table below shows time, temperature, and temperature change...
I need help with these two
1 The table below shows time, temperature, and temperature change data collected using Pivot Lab#8 (Specific Heat of Water Experiments). The heat supplied, Q, is to be calculated from Q = Pt (where P is the power of the light bulb which is 25 watts and t is the time). For example, when t = 200 s, Q = 25 watts x 200 s = 5000 Joules. Plot Temp. Change (vertical axis) versus Heat...
What is the amount of heat (kJ) required to vaporize 1.75 kg of saturated liquid water...
What is the amount of heat (kJ) required to vaporize 1.75 kg of saturated liquid water at 55 C to saturated vapor while maintaining constant pressure? Select one: O a. required heat = 4189.1 kJ. b. required heat = 4168.5 kJ. c. required heat = 4147.2 kJ. d. required heat = 4126.0 kJ. e. required heat = 4104.5 kJ. Which of the following is correct regarding the zeroth law of thermodynamics? Select one: O a. it describes how a system...
36. A. What is the difference between intensive and extensive properties? (Circle one correct answer) a)...
36. A. What is the difference between intensive and extensive properties? (Circle one correct answer) a) An intensive property is independent of the amount of the substance, whereas extensive property depends on b) Along with the change of the amount of substance, an intensive property changes faster than extensive property. c) Intensive properties are quantitative properties of substance, while extensive properties are qualitative d) An extensive property is independent of the amount of the substance, whereas intensive property depends on...
Solve equation (15-19) for the temperature distribution in a plane wall if the internal heat generation...
Solve equation (15-19) for the temperature distribution in a plane wall if the internal heat generation per unit volume varies according to y = 4 . The boundary conditions that apply are T=To atx=0 and T=T, at x=L Equation 15-19 15.2 Special Forms of the Differential Energy Equation The applicable forms of the energy equation for some commonly encountered stations follow. In every case the dissipation term is considered negligibly small I. For an incompressible fluid without energy sources and...
9. During the calorimetry lab, we measured the exchange of heat. We assumed heat lost by...
9. During the calorimetry lab, we measured the exchange of heat. We assumed heat lost by the system would equal heat gained by the surroundings. During this lab, the system was an acid base neutralization reaction. Which of the following best describes the measured surroundings in our experiment? [5pts] a. Styrofoam cups b. The bench top c. Water in the acid/base solutions d. All of the above Both "a" and "b" f. Both "a" and "C" 10. During lab 7...
Physics Help.
1. The difference between heat and temperature is: none, there is no difference heat is only warm, while temperature can be both hot or cold temperature measures the avg kinetic energy of some molecules and heat is the energy that can raise that kinetic energy heat measures the avg kinetic energy of some molecules and temperature is the energy that can raise that kinetic energy 2. The kinetic energy of a two kilogram ball moving at 5 meters/second...
not
the firsf picture. only the second
QUESTION 1 Two glasses with equal quantities of water are at the same temperature. if the temperature of one is ralsed by 10 C and that of the other is raised by 10K, which one will be hotter? O The temperature of the first glass is more than the second, as each degree on the Celsius scale equals 1.8 degrees on the Kelvin scale. - The temperature of first glass is more than...
solve
The heat energy associated with a change in temperature that does not involve a change in phase is given by -msAT where q is heat in joules, mis mass in grams, s is specific heat in joules per gram-degree Celsius, J/(g·°C). and AT is the temperature change in degrees Celsius. The heat energy associated with a change in phase at constant temperature is given by where q is heat in joules, m is mass in grams, and ? H...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00 g of water from 300.0 K to 365.0 K. (Remember that one degree of Celsius contains the same amount of energy as one Kelvin.) 2. Determine the energy, in Joules, released as 1.00 kilogram of water cools from 72.0°C to 30.0°C. 3. 25.0 g of mercury are heated from 25.0° C to 155.0°C and absorbs 455 joules of heat in the process. Calculate the...
Learning Goal: To understand specific heat and heat of transformation and how they are related to temperature versus time graphs Energy can be added to a system either by doing work w an it or by adding heat tot Energy transfer by work equires a force to act through some distance Energy ansfer in the form of heat occurs between objects that are different temperatures with onergy spontaneously aveling from the higher temperature object to the lower mperature one. When...
I need help with these two
1 The table below shows time, temperature, and temperature change data collected using Pivot Lab#8 (Specific Heat of Water Experiments). The heat supplied, Q, is to be calculated from Q = Pt (where P is the power of the light bulb which is 25 watts and t is the time). For example, when t = 200 s, Q = 25 watts x 200 s = 5000 Joules. Plot Temp. Change (vertical axis) versus Heat...
What is the amount of heat (kJ) required to vaporize 1.75 kg of saturated liquid water at 55 C to saturated vapor while maintaining constant pressure? Select one: O a. required heat = 4189.1 kJ. b. required heat = 4168.5 kJ. c. required heat = 4147.2 kJ. d. required heat = 4126.0 kJ. e. required heat = 4104.5 kJ. Which of the following is correct regarding the zeroth law of thermodynamics? Select one: O a. it describes how a system...
36. A. What is the difference between intensive and extensive properties? (Circle one correct answer) a) An intensive property is independent of the amount of the substance, whereas extensive property depends on b) Along with the change of the amount of substance, an intensive property changes faster than extensive property. c) Intensive properties are quantitative properties of substance, while extensive properties are qualitative d) An extensive property is independent of the amount of the substance, whereas intensive property depends on...
Solve equation (15-19) for the temperature distribution in a plane wall if the internal heat generation per unit volume varies according to y = 4 . The boundary conditions that apply are T=To atx=0 and T=T, at x=L Equation 15-19 15.2 Special Forms of the Differential Energy Equation The applicable forms of the energy equation for some commonly encountered stations follow. In every case the dissipation term is considered negligibly small I. For an incompressible fluid without energy sources and...
9. During the calorimetry lab, we measured the exchange of heat. We assumed heat lost by the system would equal heat gained by the surroundings. During this lab, the system was an acid base neutralization reaction. Which of the following best describes the measured surroundings in our experiment? [5pts] a. Styrofoam cups b. The bench top c. Water in the acid/base solutions d. All of the above Both "a" and "b" f. Both "a" and "C" 10. During lab 7...
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