Physics
Physics, 27.07.2019 01:20, dustinquiz255

  what percent of the 80 kcal of heat q needed to change one kilogram of ice at 0°c to water at 0 °c is involved in doing work w? is w positive or negative? the density of ice and water are 917 kg m-3 and 1000 kg m", respectively.

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Physics, 22.07.2019 22:00, chocolateFudge
Multiple ! you can answer any one you ! i need fast! calculate the total heat content of 10 kg of ice at -23°c. (hint: a substance at absolute zero, -273o c, has 0 heat content.) 115 kcal 1300 kcal 1400 kcal 1500 kcal how much heat is contained in 100 kg of water at 60.0 °c? (hint: a substance at absolute zero, -273o c, has 0 heat content.) 30 kcal 2.10 x 104 kcal 2.40 x 104 kcal 2.77 x 104 kcal calculate the energy needed to vaporize 10.0 kg of iron (c = 0.110) initially at 2,640°c. 110 16,300
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Physics, 22.07.2019 22:40, ldibut2003
Multiple ! you can answer any one you ! i need fast! calculate the total heat content of 10 kg of ice at -23°c. (hint: a substance at absolute zero, -273o c, has 0 heat content.) 115 kcal 1300 kcal 1400 kcal 1500 kcal how much heat is contained in 100 kg of water at 60.0 °c? (hint: a substance at absolute zero, -273o c, has 0 heat content.) 30 kcal 2.10 x 104 kcal 2.40 x 104 kcal 2.77 x 104 kcal calculate the energy needed to vaporize 10.0 kg of iron (c = 0.110) initially at 2,640°c. 110 16,300
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Physics, 09.08.2019 22:30, eto911
An object's heat capacity is defined to be a. the amount of heat energy needed to raise its temperature by 1°c b. the ratio of its specific heat to that of water c. its ability to quickly heat up and glow red-hot d. the amount of heat energy per kilogram needed to raise its temperature by 1°c e. the change in its temperature caused by adding 1 j of heat f. the amount of heat energy needed to change its state without changing its temperature
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