The same energy Q enters five different substances as heat. The temperature of 3 g of substance A increases by 10K The temperature of 4 g of substance B increases by 4 K The temperature of 6 g of substance C increases by 15 K The temperature of 8 g of substance D increases by 6 K The temperature of 10 g of substance E increases by 10K Which substance has the greatest specific heat?
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- A closed box is filled with dry ice at a temperature of -86.0 °C, while the outside temperature is 21.0 °C. The box is cubical, measuring 0.394 m on a side, and the thickness of the walls is 4.49 × 102 m. In one day, 3.76 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made. Number UnitsMany species cool themselves by sweating, because as the sweat evaporates, heat is transferred to the surroundings. A human exercising strenuously has an evaporative heat loss rate of about 659 W. If a person exercises strenuously for 21.9 min, how much water must he drink to replenish his fluid loss? The heat of vaporization of water is 2430 J/g at normal skin temperature.When it rains, water vapor in the air condenses into liquid water, and energy is released. (a) How much energy is released when 0.0356 m (1.40 inch) of rain falls over an area of 2.59×106 m² (one square mile)? (b) If the average energy needed to heat one home for a year is 1.50x10¹1 J, how many homes could be heated for a year with the energy determined in part (a)? (a) Number i (b) Number 1 Units Units
- How much energy is required to change a 31 g ice cube from ice at -11 °C to steam at 112°C? The specific heat of ice is 2090 J/kg °C, the specific heat of water is 4186 J/kg °C and the specific heat of steam is 2010 J/kg °C. The heat of fusion of water is 333000 J/kg and the heat of vaporization is 2.26 × 106 J/kg. Answer in units of J.I am very hungry, so I need to cook myself some ramen on the stove. I fill up a pot with 2 kg of water and place the pot on my stove which has an average power output of 8.22 kW, raising the water's temperature from 31.5°C to its boiling point (roughly around 100.6°C). How long after placing the pot of water on the stove does it take for the pot of water start boiling in seconds? Hint: Water has a specific heat of 4.2 k J k g ∘ C, and this is an energy transformation problem. Start with finding Q.A 10 kg box is hit by a truck and slides across the concrete. After being hit by the truck the box has an initial velocity of 6m/s and takes 5m to come to a stop. If the box heats up by 10 degrees, what are the specific heat of the box and the coefficient of friction between the box and the concrete?
- -1 Heat capacity of ice: 2090 J kg-¹ °C-1 Heat capacity of water (liquid): 4186 J kg-¹ °C-1 Latent heat of fusion: 3.36×105 J kg-¹ -1 Latent heat of vaporization: 2.26×107 J kg -1 Give your answers to at least three significant figures. Your answers must be accurate to 1%. How much heat energy is required to raise the temperature of 625 g of ice from a temperature of -50 °C to a temperature of -27 °C? J Submit Answer How much heat energy is required to raise the temperature of 625 g of water from a temperature of 43 °C to a temperature of 87 °C? J Submit Answer How much heat energy is required to raise the temperature of 625 g of water (initially ice) from a temperature of -50 °C to a temperature of 87 °C? J Submit Answer How much heat energy is required to evaporate 625 g of water which is initially at a temperature of 43 °C? JA styrofoam container used as a picnic cooler contains a block of ice at 0°C. If 564 g of ice melts in 1 hour, how much heat energy per second is passing through the walls of the container? The heat of fusion of ice is 3.33 x 10° J/kg. Answer in units of W.A 2-kilogram [kg] projectile traveling at 100 meters per second [m/s] is stopped by being shot into an insulated tank containing 100 kilograms [kg] of water. If the kinetic energy of the projectile is completely converted into thermal energy with no energy lost, how much will the water increase in temperature in units of degrees Celsius [°c]? The specific heat of water is 1 calorie per gram degree Celsius [cal/(g °C)]. Click the icon to view the conversion table. Click the icon to view conversion formulas for temperature scales. Click the icon to view the factors for conversions involving temperature differences. Click the icon to view the table of common derived units in the SI system. ..... The temperature will increase by °C. (Round your answer to four decimal places.)
- You drop an ice cube into an insulated bottle full of water and wait for the ice cube to completely melt. The ice cube initially has a mass of 70.0 g and a temperature of 0°C. The water (before the ice cube is added) has a mass of 880 g and an initial temperature of 20.0°C. What is the final temperature (in °C) of the mixture? (Assume no energy is lost to the walls of the bottle, or to the environment.) ?°CYou drop an ice cube into an insulated container full of water and wait for the ice cube to completely melt. The ice cube initially has a mass of 60.0 g and a temperature of 0°C. The water (before the ice cube is added) has a mass of 850 g and an initial temperature of 30.0°C. What is the final temperature (in °C) of the mixture? (Assume no energy is lost to the walls of the container, or to the environment.)A block of copper with mass 0.600 kg is heated to 400. degrees Celsius from 260. degrees Celsius. The specific heat capacity of copper is 387 J/ (kg°C). The heat absorbed by the copper block is 2.88 E5 J 3.25 E4 J 6.04 E5 J 9.29 E4 J