1. Chemistry

    A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.90 gallons, what is the boiling point of the solution? Make the following assumptions in your
  2. chemistry

    A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.20 gallons, what is the boiling point of the solution? Make the following assumptions in your
  3. Chem 2

    A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.00 gallons, what is the boiling point of the solution? Make the following assumptions in your
  4. Chemistry

    4. A typical car engine produces 44,000 kJ of heat in an hour. The cooling system has a capacity of 8.40 L and is filled with a 50:50 mixture of anti-freeze (specific heat capacity of 8.37 J/g-oC, density of 1.038 g/mL). In maintaining a constant engine
  5. Chemistry

    Check my work & answer please. I need to make sure I am able to do this type of problem correctly. A typical car engine produces 44,000 kJ of heat in an hour. The cooling system has a capacity of 8.40 L and is filled with a 50:50 mixture of anti-freeze
  6. Math

    The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests that, for summer diving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is
  7. physics(mechanics)

    how does the engines get cooled when the vehicle moves in a hill ramp.?i ask this question because its said that cooling fans are drived by the rotation of the engines sothat the cooling fans are mounted in the engine casing.If that's is the case then at
  8. Physics

    A heat engine is 20% efficient. If it loses 800 J to the cooling system and exhaust during each cycle, the work done by the engine is: 200 J 1000 J 800 J 20 J
  9. Math algebra

    The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests that, for summer diving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is
  10. Algebra

    The radiator in a car is filled with a solution of 75 per cent antifreeze and 25 per cent water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50 per cent antifreeze. If the
  11. math

    The radiator in a car is filled with a solution of 70 per cent antifreeze and 30 per cent water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50 per cent antifreeze. If the
  12. math

    The radiator in a car is filled with a solution of 70 per cent antifreeze and 30 per cent water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50 per cent antifreeze. If the
  13. Chemistry

    What is a minimum volume (in gallons) of ethylene glycol (CH2OHCH2OH, an antifreeze) that has to be added to 3.00 gal of water if you desire this engine cooling solution (for a auto radiator) NOT to be frozen below - 34.1 oC - a very cold Siberian or
  14. physics......PLEASE HELP!!

    A steam engine absorbs 1.98*10^5 J and expels 1.49*10^5 J in each cycle. Assume that all of the remaining energy is used to do work. a. What is the engine's efficiency? b. How much work is done in each cycle? If a gasoline engine has an efficiency of 21
  15. physics

    An automobile cooling system holds 16 L of water. The specific heat of water is 4186 J/kg⋅C∘.How much heat does it absorb if its temperature rises from 16∘C to 94∘C?
  16. Chemistry

    I've got a similar question as a previous student. What is a minimum volume (in gallons) of ethylene glycol (CH2OHCH2OH, an antifreeze) that has to be added to 3.00 gal of water if you desire this engine cooling solution (for a auto radiator) NOT to be
  17. Physical science

    The engine of a car is being lifted out of the car by using a pulley system. The weight of the engine is 8000N. Use a scale diagram to determine the horizontal force, F1 that a mechanic has to use to hold the engine in such a position that the rope makes
  18. Organic Chemistry

    Assume that a round bottom flask holds 100 mL and the distilling head has an internal volume of 12 mL in the vertical section. At the end of a distillation, vapor would fill this volume, but it could not be forced through the system. No liquid would remain
  19. Math 6

    I am stuck. Mike's truck engine holds 1 1/4 gallons of oil in the engine now, how many more quarts of oil does Mike need to add to fill the engine to capacity? Having trouble on do I subtract or?? what do I do?
  20. math

    mikes truck engine holds 1 1/4 gallons of oil if there are 3 quarts of oil in the engine now how many more quarts of oil does mike need to add to fill the engine capacity?
  21. Physics

    Which provides more cooling for a styrofoam cooler, one with 10 lbs of ice at 0 degrees C or one with 10 lbs of ice water at 0 degrees C. Explain. qice=mass*heat of fusion. qH2O=mass*specific heat x delta T However, you aren't given a two temperatures;
  22. math

    mikes truck engine holds 1 1/4 gallons of oil if there are 3 quarts of oil in the engine now how many more quarts of oil does mike need to add to fill the engine capacity? -(hint i gallon is 4 quarts)
  23. Math

    The cooling system of a car has a capacity of 20 liters. If the system is currently filled with a mixture that is 60​% ​antifreeze, how much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with a
  24. Chem

    Some ethylene glycol, HOCH2CH2OH, is added to your car's cooling system along with 4.4 kg of water. If the freezing point of the water-glycol solution is -15.0°C, how many grams of HOCH2CH2OH must have been added? I used the equation: 15 celcius = 1 x
  25. Chemistry

    The cooling system in an automobile holds 10.0 L of ethylene glycol antifreeze. How much energy is absorbed when the temperature of the ethylene glycol goes from 20°C to 100°C? The density and specific heat capacity of ethylene glycol are 1.11 g/mL and
  26. Math help?

    I am stuck. Mike's truck engine holds 1 1/4 gallons of oil. If there are 3 quarts of oil in the engine now, how many more quarts of oil does Mike need to add to fill the engine to capacity? Having trouble on do I subtract or?? what do I do
  27. physics

    If a gasoline engine has an efficiency of 21 percent and loses 780 J to the cooling system and exhaust during each cycle, how much work is done by the engine? Is it 3709.5??? Chemical energy in (as fuel and oxygen) = Work out + Heat out 21% is the ratio of
  28. English

    1. I got out of my car to check the engine. 2. I got off my car to check the engine. (Are both the same? In #2, what is the part of speech of 'off'? Is 'off' an adverb or a preposition?) 3. I got out of my car to check the engine. 4. I got out of my car to
  29. Physical Science

    The main difference between the internal combustion engine and the diesel engine is that the diesel engine A. does not have a crankshaft. B. does not utilize pistons. C. has no connecting rods. D. has no ignition system. pretty sure its d
  30. chemistry

    Which of the following statements about boiling points are true? A. The boiling point of 0.1 m NaF(aq) is lower than the boiling point of 0.1 m methanol(aq). B. The boiling point of a 0.5 m aqueous solution of LiOH is the same as the boiling point of a 0.5
  31. biology

    Most automobiles have water-cooled engines. What must be true about a solution that can replace water in the cooling system, such as antifreeze? I know this is the second time I'm posting this question, but it's been hours and still no one's responding.
  32. Chem

    A 2.8L engine in a vehicle with air conditioning uses 26.5L of coolant. If the coolant has density of 1.11g/ml, what mass does the coolant add to the vehicle ?
  33. Chemistry Urgent

    1) 30cm3 of methane and ethane mixed with 100cm3 of O2 at RTP. Explosion occurs, on cooling 61.5cm3 remained. Find the percentage by volume of each gas in the mixture 2)32cm3 of a mix of CO2, CH4 and H2 mix with 50cm3 of O2 and exploded after cooling to
  34. chemistry (please help)

    A 2.8-L engine in a vehicle with air-conditioning uses 26.5-L of coolant. If the coolant has a density of 1.11 g/ml, what mass does the coolant add to the vehicle?
  35. Physics

    When one gallon of gasoline is burned in a car engine, 1.20 108 J of internal energy is released. Suppose that 0.99 108 J of this energy flows directly into the surroundings (engine block and exhaust system) in the form of heat. If 5.0 105 J of work is
  36. Chemistry

    Which of the following statements about boiling points are false: A. the boiling point of 0.1 m KF(aq) is lower than the boiling point of 0.1 m ethanol(aq) B. the boiling point of a 0.5 m aqueous solution of NaOH is the same as the boiling point of a 0.5 m
  37. AP Chemistry- please help!

    Glycerol (a non-electrolyte that can be used as antifreeze and coolant in a car radiator) has a density of 1.261 g/mL and a molecular weight of 92 g/mol. If 111 mL of glycerol are mixed with 5.1 kg of water, by how much would the boiling point of the
  38. AP Chemistry- please help!

    Glycerol (a non-electrolyte that can be used as antifreeze and coolant in a car radiator) has a density of 1.261 g/mL and a molecular weight of 92 g/mol. If 111 mL of glycerol are mixed with 5.1 kg of water, by how much would the boiling point of the
  39. physical science

    Inside the cylinders of a diesel engine, the mixture of fuel and air is compressed to about 1/20 of its original volume. although diesel engines have no spark plugs to ignite this mixture, it ignites anyway because_. a) increases in temperature decrease
  40. Science

    Why do the coolant in a car's radiator protects the engine from damage?
  41. physics

    A water-cooled engine produces 1589 W of power. Water enters the engine block at 14.61 °C and exits at 29.91 °C. The rate of water flow is 147.3 L/h. What is the engine’s efficiency?
  42. physics

    A water-cooled engine produces 1589 W of power. Water enters the engine block at 14.61 °C and exits at 29.91 °C. The rate of water flow is 147.3 L/h. What is the engine’s efficiency?
  43. Chemistry

    Can you check my answers? Thanks!!!! What would happen to the volume-to-temperature ratio if: 1. One student failed to replenish the boiling water in the boiling-water bath as the flask was being heated. At the end of the 6 min of heating, the boiling
  44. Math

    Mr. Ranier's car uses about 1.6 fluid ounces of gas per minute when the engine is idling. One night, he parked his car but forgot to turn off the motor. He had just filled his tank. His tank holds 12 gallons. About how many hours will it take before his
  45. Rates

    Mr. Ranier's car uses about 1.6 fluid ounces of gas per minute when the engine is idling. One night, he parked his car but forgot to turn off the motor. He had just filled his tank. His tank holds 12 gallons. About how many hours will it take before his
  46. Math

    Mr. Rainier's car uses about 1.6 fluid ounces of gas per minute when the engine is idling. One night, he parked his car but forgot to turn off the motor. He had just filled his tank. His tank holds 12 gallons. About how many hours will it take before his
  47. Math

    Mr. Rainier's car uses about 1.6 fluid ounces of gas per minute when the engine is idling. One night, he parked his car but forgot to turn off the motor. He had just filled his tank. His tank holds 12 gallons. About how many hours will it take before his
  48. math

    A water system of 2 in.(inside diameter) pipe, having a length of 1/4 mile, is to be flushed with a volume of water equal to twice that contained in the system. how much water (gallons) must be flushed through the system? (note: one cubic foot=7.481gal.)
  49. biology

    1. how do molecules of a polar compound differ from those of a nonpolar compound? 2. What happnens when ionic compounds are mixed with water? 3. what is capillarity? 4. Critical Thinking: Most automobiles have water-cooled engines. What must be true about
  50. science

    An ideal gas for which Cv = 3R/2 is the working substance of a Carnot engine. During the isothermal expansion, the volume doubles. The ratio of the final volume to the initial volume in the adiabatic expansion is 5.7. The work output of the engine is 9 x
  51. Help plzzz

    Choose one of the biological systems described below. What health problems might the giants in the land of Brobdingnag have, or the giant child in the movie Honey, I blew up the Kid? Transportation system--Your body generates heat according to its volume.
  52. science

    PLEASE HELP GUYS An ideal gas for which Cv = 3R/2 is the working substance of a Carnot engine. During the isothermal expansion, the volume doubles. The ratio of the final volume to the initial volume in the adiabatic expansion is 5.7. The work output of
  53. small engane

    FIGURE A-9—This photo should be used to answer Question 15. 15. Two small engine technicians are disassembling the engine shown in Figure A-9. After observing the engine components, both technicians say that this engine has a splash-type lubrication
  54. Physics

    A large engine with mass of 400 kg must be lifted 3 meters out of a truck for repair. A normal mechanic can lift with about 250 N of pulling force. They use a system of pulleys to do this. If we assume the engine starts on the ground, how long must the
  55. physics

    If an automobile engine delivers 46.0 hp of power, how much time will it take for the engine to do 5.30 x 10^5 J of work?
  56. algebra

    A certain car's cooling system has an 8-qt capacity and is filled with a mixture that is 30% alcohol. How much of this mixture must be drained off and replaced with pure alcohol if the solution is to be 50% alcohol?
  57. Physics

    You are testing a new car in a wind-tunnel for road and wind resistance. At speed of 90.0 km/h you have found that 74.0 % of the total output power of an automobile engine is used in overcoming the resistance of the road and wind against the movement of
  58. Chemistry

    A popular brand of automobile radiator antifreeze advertises that their product (ethylene glycol; C2H6O2) provides engine protection from temperatures of -64C to 135C when mixed with water in a 50%/50% mix. What is the boiling point elevation and freezing
  59. Physics

    The electric starter in an automobile equipped with a 12 V battery draws a current of 100.00 A when in operation. Suppose it takes the motor 4.00 s to start the engine. What amount of electric energy has been withdrawn from the battery? Answer: (in J)
  60. physics

    When an automobile moves with constant speed down a highway, most of the power developed by the engine is used to compensate for the mechanical energy loss due to frictional forces exerted on the car by the air and the road. If the power developed by the
  61. physics

    An engine moves a boat through the water at a constant speed of 16 m/s. The engine must exert a force of 7.0 103 N to balance the force that water exerts against the hull. What power does the engine develop? answer:___ kW
  62. chem

    The radiator in your car uses either water or ethylene glycol (anti-freeze) to remove heat from the engine and dissipate it to the outside air. If the water recirculation rate is 17.0 kg per minute of water and the water temperature leaving the engine and
  63. chemistry

    The radiator in your car uses either water or ethylene glycol (anti-freeze) to remove heat from the engine and dissipate it to the outside air. If the water recirculation rate is 17.0 kg per minute of water and the water temperature leaving the engine and
  64. physics

    WHAT CONDITIONS ARE NECESSARY FOR A HEAT ENGINE TO HAVE AN EFFICIENCY OF 1.0? AND HOW DO THE TEMP OF COMBUSTION AND THE TEMP. OF COOLANT AND EXHAUST AFFECT THE EFFICIENCY OF AUTOMOBILE ENGIES?
  65. Physics

    Note: One horsepower is equal to 746 watts. An automobile engine delivers 53.1 hp. How much time will it take for the engine to do 8.43 × 10 5J of work? Answer in units of s
  66. chemistry

    How many moles of antifreeze (a molecular substance) must be added per liter of water to protect the cooling system of a motocar to -30 degrees F.
  67. chemistry

    would the molar mass of a volatile liquid be incorrectly high, incorrectly low or unaffected if a)you did not completely vaporize the liquid when you heated it. b)the foil cap got wet while you were cooling the flask and its contents with running water c)
  68. PHYSICS!!

    A car's engine can accelerate a car from rest to 30 m/s in 6 s. if the car's mass is 1300 kg, what is the power of the engine? can someone give me the answer because i just want to verify it with my own? thank you!
  69. Chemistry

    Crystallization occurs on_____________ Melting point Boiling point Cooling Freezing point
  70. science

    If an automobile engine delivers 40.2 hp of power, how much time will it take for the engine to do 5.90 ✕ 105 J of work? (Hint: Note that one horsepower, 1 hp, is equal to 746 watts.)
  71. Physics

    If an automobile engine delivers 45.2 hp of power, how much time will it take for the engine to do 5.40 105 J of work? (Hint: Note that one horsepower, 1 hp, is equal to 746 watts.) in seconds
  72. Math

    A car engine burns gasoline at the rate of two gallons per hour. If it does this for 8 hours each day, approximately how many weeks will it take for the car to burn 11,200 gallons of gasoline?
  73. Physics

    An engine is used to pull a train of two cars out of a mine. The floor slopes upward at an angle of 24o. Each car has a mass of 0.8x104 Kg and normally travels without friction on the tracks. The engine can exert a maximum force of 1.4x105 N on car A. If
  74. Physics

    A 0.0475 kg ice cube at −30.0°C is placed in 0.577 kg of 35.0°C water in a very well insulated container. The latent heat of fusion of water is 334 kJ/kg, the specific heat of ice is 2092 J/(kg · K), and the specific heat of water is 4184 J/(kg ·
  75. Chemistry

    Question: if you added ethylene glycol to your car's radiator to lower the freezing point to -31.0 degree C, what would the corresponding boiling point of the coolant in your radiator. The freezing point and boiling point constants for water are 1.86 and
  76. physics

    A short train (an engine plus four cars) is accelerating at 1.10 . The mass of each car is 38000 , and each car has negligible frictional forces acting on it. In solving this problem, note the importance of selecting the correct set of cars to isolate as
  77. physics

    an engine pumps of 100 kg of water through a height of 10m in 5 second. Given that the efficiency of engine is 60%. If g=10m/s^2 the power of engine is
  78. Chemistry

    What properties explain the behavior of liquid-filled thermometers? Liquids expand upon heating and contract upon cooling. thanks.. What are the two reference temperature on the Celsius Scale? Freezing point of water is 0o C and boiling point is 100o C. I
  79. physics

    A 40%-efficient car engine accelerates the 1300 kg car from rest to 20 m/s How much energy is transferred to the engine by burning gasoline? .
  80. Chemistry

    What colligative properties are displayed by these situations. 1. Antifreeze is added to car cooling system preventing freezing when air temp is below 0 degrees C. 2. Ice melts on sidewalk after salt has been spread
  81. chemistry

    Which of the following processes is entropy increasing in the local system? You may select multiple processes. Combination reactions where two reactants join to make a single product. a system with increasing molecular motion cooling a six-pack of beer by
  82. Physics

    Just as no mechanical device can be 100% efficient, no heat engine can transfer 100% of its heat to a single object. Some of the heat energy must be wasted (released into the environment). We have a heat engine that produces 150 J of heat, does 40 J of
  83. math check please

    Newton’s law of cooling states that for a cooling substance with initial temperature T0 T 0 , the temperature T(t) T ( t ) after t minutes can be modeled by the equation T(t)=Ts+(T0−Ts)e−kt T ( t ) = T s + ( T 0 − T s ) e − k t , where Ts T s is
  84. science 3 questions!!

    2. A device that can be used both for cooling and heating is a _____. (1 point) heat engine compressor heat pump vaporizer 3. All objects emit _____ radiation. (1 point) electromagnetic kinetic thermal solar 4. Fast food restaurants keep food hot with
  85. physics

    Due to a tune-up, the efficiency of an automobile engine increases by 4.00%. For an input heat of 1530 J, how much more work does the engine produce after the tune-up than before?
  86. Physics

    A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is not changing. What is
  87. Physics

    A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is not changing. What is
  88. Physic II

    Describe a situation in which you expect the initial cooling rate of a given object to be rapid and one in which the initial cooling rate might be slow. Note: the initial cooling rate is the change in temp. per second at first
  89. Chemistry

    The boiling point on the kelvin scale is? Unit of volume in SI system How much heavier is benzene than water?
  90. Chemistry

    The boiling point of a solution increases directly as a function of the number of moles of solute present in a given mass of solution. This relationship is expressed mathematically by the following equation. ΔTb = Kb·m ΔTb is the boiling-point elevation
  91. Physics

    We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? Please don't give me the answer! Just help figure out how to find it! The description for the lesson with
  92. physics

    ojee a benz mechanic tries to remove an engine from a car by attaching a chain to it from a point directly overhead and then pulling sideways with horizontal force F.if the engine has mass 180 kg.what is the tension in the chain when it makes an angle
  93. physics

    ojee a benz mechanic tries to remove an engine from a car by attaching a chain to it from a point directly overhead and then pulling sideways with horizontal force F.if the engine has mass 180 kg.what is the tension in the chain when it makes an angle
  94. Physics

    A sports car with a very powerful engine driving on a surface with a coefficient of static friction µs = 0.8 wants to accelerate from a stop to 100 km/hr. (You may neglect air resistance.) a) What is the fastest that the car can accomplish this? b) How
  95. Science

    Write on Newton law of cooling and cooling collision.
  96. Physics

    The motion of a piston in an automobile engine is nearly simple harmonic. If the 1-kg piston travels back and forth over a total distance of 10.0 cm, what is its maximum speed when the engine is running at 3 000 rpm? The answer is 15.7 m/s but I don't
  97. Physics

    We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? (show you work)
  98. science

    spent steam from an electric generating plant leaves the turbines at 120.0 C and is cooled to 90. 0 C liquid water by water from a cooling tower in a heat exchanger. How much heat is removed by the cooling tower water for each kg of spent steam?
  99. Algebra

    A car's cooling system of a car has a capacity of 15 liters. suppose that it is currently full of a 40% antifreeze mixture. you want 60% antifreeze mixture so you drain some of the current mixture and then add the pure antifreeze. How much antifreeze
  100. physics - engine

    A car V8 has a bore of 4 in. and a stroke of 2.5 in., what is the engine size?