How fast would 18.5L water temperature rise to 144 degrees?

In summary, the conversation discusses how long it would take for 18.5L of water in a plastic container to reach a temperature of 144 degrees in a room with a maximum temperature of 122 degrees. It is suggested to apply Newton's Law of Cooling and determine the thermal resistance between the room and the water to accurately calculate the time. The starting temperature of the water and the units used also play a significant role in the calculation.
  • #1
brycenrg
95
2
If u had a 18.5L water in a plastic container, in a room that was at 144 degrees. How long would it take for 18.5L water to rise to that temperature? I am trying to buy a water storage device, but it can't go over 122 degrees.
 
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  • #3
If you put something in a room at 144 degrees it will eventually reach 144 degrees, it's just a matter of how long it takes. To work that out you need to know the thermal resistance between the room and the water. That will depend on the thickness of the plastic container, it's surface area and factors such as is the air or water stirred or subject to convection. It might well be easier to determine the thermal resistance experimentally.

You also need to know the starting temperature of the water. It would also make quite a difference if your units are Centigrade!
 

1. How does the initial temperature of the water affect the rate of temperature increase?

The initial temperature of the water does affect the rate of temperature increase. The higher the initial temperature, the faster the water will reach 144 degrees. This is because there is already more thermal energy present in the water, making it easier for the temperature to rise.

2. Is the size or shape of the container holding the water a factor in the rate of temperature increase?

The size or shape of the container does not have a significant impact on the rate of temperature increase. As long as the container is able to hold the water and prevent heat loss, the rate of temperature increase will be consistent.

3. Are there any external factors that could affect the rate of temperature increase?

Yes, external factors such as ambient temperature, humidity, and air flow can affect the rate of temperature increase. Higher ambient temperatures and lower humidity can speed up the rate of temperature increase, while air flow can cause heat loss and slow down the temperature increase.

4. How long would it take for the water to reach 144 degrees at a constant rate of temperature increase?

The time it takes for the water to reach 144 degrees will depend on the rate of temperature increase. If the temperature is increasing at a constant rate, it would take approximately 8 minutes for the water to reach 144 degrees, given that the initial temperature is at room temperature (23 degrees Celsius).

5. Is there a maximum temperature that the water can reach?

In this scenario, the maximum temperature the water can reach is 144 degrees. This is because water boils at 100 degrees Celsius, and it cannot reach a temperature higher than its boiling point without evaporating into steam.

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