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The specific heat capacity of water is 4.18 J/g°C. To calculate the energy required:

  1. Determine the mass of water: 20mL of water is 20g.
  2. Calculate the temperature change: 40°C - 20°C = 20°C.
  3. Use the formula Q = m * c * ∆T to find the energy needed, where Q is the energy, m is the mass, c is the specific heat capacity, and ∆T is the temperature change. Substituting in the values, Q = 20g * 4.18 J/g°C * 20°C = 1672 J.

Therefore, 1672 Joules of energy is required to heat 20mL of water from room temperature to 40 degrees.

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How much energy would you use to raise temperature of kg of water by 2 degrees Celsius?

The amount of energy required to raise the temperature of 1 kg of water by 1 degree Celsius is approximately 4,186 Joules. Therefore, to raise the temperature by 2 degrees Celsius, you would need about 8,372 Joules of energy.


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How much energy is needed to change 125g of ice at -32.9 degrees to water at 75 degrees?

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Related Questions

How many kilowatts are required to raise the temperature of 1000 liters of water by 10 degrees centigrade?

Kilowatts is a unit of energy rate, while the temperature required to raise a specific volume of water by a specific amount of degrees is a unit of energy, not energy rate. The question cannot, therefore, be answered as stated. Please restate the question.


What has more energy a bath full of water at 55 degrees celsius or a kettle full of water at 100 degrees celsius?

A normal bath full of water. Sorry but this depends on units of energy that you are familiar with-. I will use caldepending where you are taug The enery required to raise the temperature of the a 1kg of water in a kettle from zero degrees to 100 is 100 kilocalories The bath contains more at least 20 kg of water, and the energy required to raise the temperature of that volume of water by 55 degrees is 20 X 55 = 1100 kcals


How much energy is required to raise 21kg of water by 2 degrees Celsius?

The specific heat capacity of water is 4.18 J/g°C. To calculate the energy required to raise 21 kg of water by 2 degrees Celsius, use the formula: Energy = mass x specific heat capacity x temperature change. Plugging in the values, the energy required is 21,084 Joules.


How much energy would you use to raise temperature of kg of water by 2 degrees Celsius?

The amount of energy required to raise the temperature of 1 kg of water by 1 degree Celsius is approximately 4,186 Joules. Therefore, to raise the temperature by 2 degrees Celsius, you would need about 8,372 Joules of energy.


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The amount of heat required to increase the temperature of the substance to 1 degree greater than that of the initial temperature of the body!


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