Q: What happens to atoms and molecules as there temperature increases?
A: The heat energy absorption by a mass particle increases it's temperature
Q: The amount of energy needed to change the phase of a substance is given by
A: Given data: The phase of a substance changes Required: Equation for the amount of energy needed
Q: How does the arrangement of atoms in a crystalline substance differ from that in a noncrystalline…
A: Crystalline material In crystals the atoms are neatly stacked in a three dimensional array. The…
Q: The specific heat of a material depends on the type of and is a constant.
A:
Q: Is a temperature measure of the kinetic energies of the molecules.
A: According to Thermodynamics, temperature of a substance is related closely to its internal energy.…
Q: why does it take longer to cook a large 400g pizza than a small 150g pizza
A: 400 g and 150 g
Q: When a soda water bottle falls freely will the gas bubbles rise in water?
A: The freely falling bottle will have zero weight in the air. Thus it is in the state of…
Q: A tennis ball bounces on the floor three times. If each time it loses 23.0% of its energy due to…
A: The ball loses 23% of the total energy in form of heat after every bounce. Therefore, the remaining…
Q: from a hot reservoir at
A:
Q: Your friend states that the average speed of all hydrogen and nitrogen molecules in a gas is the…
A: The average speed will not be same for all hydrogen and nitrogen molecules.
Q: If a temperature of the gas molecules is increased then
A: SOlution: Kinetic theory of gases
Q: THe amount of heat that a substance has at a given temperature and pressure is called what?
A: Answer:- The amount of heat that a substance has at a given temperature and pressure is called…
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Q: is the study of thermodynamics is concerned primarily with macroscopic or microscopic processes?
A:
Q: If you drop a piece of ice on a hard surface, the energy of impact will melt some of the ice. The…
A: According to the law of conservation of energy , the total energy in a system is constant. Thus the…
Q: The unit of heat capacity is:
A: Heat capacity is defined as the amount of heat required or needed by an object to raise/increase its…
Q: The energy content of a piece of food is normally determined by O a eating the piece of food O b…
A: Energy content is an important property of food. The energy your body needs for running, talking,…
Q: The thermal energy of a container of helium gas is halved. What happens to the temperature, in…
A: The expression for average kinetic energy for a gas is KEavg=32kBT Average kinetic energy of a gas…
Q: When the temperature of a gas increases, the internal energy of the gas
A: Temperature increases
Q: What is the temperature when all molecular motion ceases?
A: Kelvin scale is defined as a temperature scale whose zero point is absolute zero where the entropy…
Q: Most objects tend to expand when heated. Which of the following statements is true? At higher…
A: Answer:- At higher temperatures objects have higher kinetic energies so their their particles…
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A: Given that the temperature of the coffee is changing at a rate of
Q: A container is filled with 4kg of water initially at temperature of 25°c heat is supplied to the…
A: Given data: Mass (m) = 4 kg Initial temperature (T0) = 25°C Final temperature (T) = 50°C Required:…
Q: If you drop a piece of ice on a hard surface, the energy of impact will melt some of the ice. The…
A: (a)The heat energy required to melt the given mass of ice is given by the product of its mass and…
Q: What is a decrease in material volume that is temperature is decreasing called
A: Required : What is a decrease in material volume when temperature is decreasing called
Q: Why do we say a substance in a liquid phase is more disordered than the same substance in the solid…
A:
Q: Water with a mass of 2.0 kg is held at constant volume in a container while 10,000 J of heat is…
A: Given Mass of water = 2 kg Amount of heat given = 10000 J Amount of heat leaked= 2000 J Volume is…
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Q: The process of transfer of heat in liquid and gas is called as
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Q: What is meant by translational kinetic energy?
A: Kinetic energy is the energy possessed by a body by virtue of its motion. A body can have motion by…
Q: There is a 3 Liter container of an and 800 K. It is Compressed to 1.61 1:ters and Coo led to 276K…
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Q: Discuss in terms of physics why restaurants serve baked potatoes wrapped in aluminum foil.
A: To increase the time that the potatoes remain hot after being removed from the oven is the main…
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Q: SOLUTION IS NEEDED How much total energy in Joules is generated in a machine gear if its temperature…
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Q: Cars and aeroplanes are streamlined. Why?
A: Cars and aero planes are streamlined because
Q: Temperature is measure of the molecule’s average of which of the following?
A: The relation we know that, E = (3/2)*RT Where, E = Kinetic energy of the molecule R = Rydberg's…
Q: Why don't atoms collapse if they are mostly empty space?
A: Atoms are not mostly empty space because there is no such thing as purely empty space. Rather, space…
Q: A type of energy storage relative to a particles speed O Work O Potential Energy O Kinetic Energy O…
A: Introduction: The kinetic energy of an object is the energy that it possesses due to its motion. It…
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A:
Q: is a form of internal kinetic and potential energy contained in an object associated with the motion…
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The sum of the kinetic and potential energy's of all the atoms and molecules in a substance is known as its what?
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- Is the total energy of the universe becoming more unavailable with time? Explain.Q20: Dr. Fahrrad has been riding his bike to his job and is curious how many ATP his body is breaking apart in order to do the work required to get to his job. Dr. Fahrrad rides 8.6 kilometers to his job, has a mass of 68.4 kilograms and has an average acceleration of 2.4 kilometers per second squared. The molecule ATP is able to do work, measured in kilojoules per mole of ATP broken into ADP. The SI unit for work is a joule. Using the information given we can calculate work and then convert to moles of ATP. The first step is to take stock of what we are given in the word problem and what we are trying to find. We have mass, distance, and average acceleration. We are trying to find how many ATP are required to power the bike ride to work. The equation for work, is force times distance and will tell us how many joules Dr. Farrhad is using on his bike ride. It also incorporates one of our given variables, distance. However, the distance was reported in kilometers and the SI unit of…Physicists refer to the energy content of a body as its A/ energy of any given molecule of a substance the object's while they call the average kinetic Anwar A A As an example of the difference, consider a cup of boiling hot tea and the boiling water in the teapot. They have the same A but the teapot has more A than the cup of tea.
- An asteroid made out of iron (7860 kg/m3) strikes the Earth in an areawhere the oceans are very deep. The velocity of the asteroid upon impact isthe same for most debris hitting the Earth’s atmosphere, 30 km/s.The difference in potential energy from orbit to ground is negligible at thisspeed. Assuming that 80% of the asteroid’s kinetic energy is transferred toheating the water, what volume of water (assuming a density of 1000 kg/m3)will be vaporized? We will assume that the water is taken from 70o F tothe point that it becomes steam. Also, assume that the asteriod is spherical,with a radius of 750 m.A 62-kg woman eats a 620 Calorie (620 kcal) jelly doughnut for breakfast. (a) How many joules of energy are the equivalent of one jelly doughnut? (b) How many steps must the woman climb on a very tall stairway to change the gravitational potential energy of the woman-Earth system by a value equivalent to the food energy in one jelly doughnut? Assume the height of a single stair is 15 cm. stairs (c) If the human body is only 27% efficient in converting chemical potential energy to mechanical energy, how many steps must the woman climb to work off her breakfast? stairs Need Help? Read ItThe average mass of an oxygen atom is 5.3*10^-26 kg. Calculate the kinetic energy of a mole of oxygen atoms, all moving at a speed of 400 m/s (1000mph). a) 8.2*10^-21 J b) 2600 J c) 5200 J d) 13,000 J
- A weight lifter bench‑presses a 150.0 kg barbell from his chest to a height equal the length of his arms, 0.850 m How many food calories does the weight lifter use if he does this lift 35 times? Assume the weight lifter does no work in letting the barbell drop back to his chest.Integrated Concepts - Frozen waste from airplane toilets has sometimes been accidentally ejected at high altitude. Ordinarily it breaks up and disperses over a large area, but sometimes it holds together and strikes the ground. Calculate the mass of 0C ice that can be melted by the conversion of kinetic and gravitational potential energy when a 20.0 kg piece of frozen waste is released at 12.0 km altitude while moving at 250 m/s and strikes the ground at 100 m/s (since less than 20.0 kg melts, a significant mess results).A) A bucket full of sand has a mass of 15 kg (including the bucket and the sand). The bucket is to be lifted to the top of a building 30 meters tall by a rope of negligible weight. However, the bucket has a hole in it, and leaks 0.3 kgs of sand each meter it is lifted.Find the work done lifting the bucket to the top of the building. B) A bucket that has a mass of 20 kg when filled with sand needs to be lifted to the top of a 25 meter tall building. You have a rope that has a mass of 0.1 kg/m that must be secured to the bucket. It takes 1 meter of rope to secure the bucket. Once the bucket reaches the top of the building it only has mass 16 kg because there was a hole in the bottom and sand was leaking out at a constant rate while it was being lifted to the top of the building.Find the work done lifting the bucket (sand and rope) to the top of the building.
- Question #: 23 If a person who normally requires an average of 12,000 kJ (~ 3000 Cal) of food energy per day consumes 13,000 kJ per day, he will steadily gain weight. How much brisk walking per day is required to work off this extra 1000 kJ? Take the energy consumption rate when brisk walking (at 5 km/h) as 280 W. A. 30 minutes B. 60 minutes C. 40 minutes D. 50 minutes E. 70 minutesIf you drop a piece of ice on a hard surface, the energy of impact will melt some of the ice. The higher it drops, the more ice will melt upon impact. - Find the height from which a block of ice should ideally be dropped to completely melt it that falls without air drag.[Hint: Equate the joules of gravitational potential energy to the product of the mass of ice and its heat of fusion (in SI units, 335,000 J/kgJ/kg). Do you see why the answer doesn't depend on mass?] Express your answer to two significant figures and include the appropriate units.The internal energy of a 5-kg suitcase starts at 150 kJ. The suitcase is mangled as it travels through the baggage handling equipment at the airport. During the process of travelling through the baggage-handling equipment, 10 kJ of work is done on the suitcase, and 8 kJ of heat is lost from the suitcase. What is the internal energy of the suitcase at the end of the process, in kJ? Neglect any change in kinetic or potential energy of the suitcase. Assume that the mass of the suitcase is unchanged. O 152 kJ O 30 kJ It is impossible to answer this question from the information provided. O It is possible to answer the question, but the correct answer is not among the ones listed. 148 kJ 168 kJ