WebLet us look, for example, at how much energy is needed to melt a kilogram of ice at 0ºC to produce a kilogram of water at 0°C. Using the equation for a change in temperature and the value for water from Table 1, we find that … Web28 apr. 2014 · Nothing will reheat the air.) Once the air temperature throughout the box is at 0 degrees Celsius, all your heat for melting the ice is used up. (Ice melts at 0 degrees Celsius.) If the ice hasn't turned into water by then, you won't be able to do it at all. (The temperature of the air can, of course, drop below zero degrees throughout the box.

How long to melt all the polar ice? - Earth Science Stack Exchange

WebThat's just 5000 years for the Antarctic ice sheets to melt. The Laurentide ice sheet was able to melt quickly because a good chunk of it was outside of the polar circle. That's not … WebYou'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer You want to heat 0.5 kg of ice at a temperature of -15 degrees Celsius to … can cream crackers cause constipation

How do you calculate the energy needed to melt water?

Web30 sep. 2024 · Answer It takes 4,270 Joules of energy to melt 12.8 grams of ice at 0 °C. Explanation The enthalpy change for melting ice is called the enthalpy of fusion. Its value is 6.02 kJ/mol. This means for every mole of melting ice, we must apply 6.02 kJ of heat. We can calculate the heat needed with the following equation: = Δ where: q = heat WebThe joule is a derived unit of energy or work in the International System of Units. It is equal to the energy expended (or work done) in applying a force of one newton through a … Web28 dec. 2024 · However, heating 0 °C ice to 20 °C requires additional energy to melt the ice. We can treat these two processes independently; thus, to heat 1 kg of ice from 273.15 K to water at 293.15 K (0 °C to 20 °C) requires: (1) 333.55 J/g (heat of fusion of ice) = 333.55 kJ/kg = 333.55 kJ for 1 kg of ice to melt, plus. can cream cheese go bad if left out