Final answer:
It will take approximately 27.87 seconds to heat 200 ml of water from 20 degrees to 60 degrees Celsius using a 300 Watt immersion heater.
Step-by-step explanation:
To estimate how long it will take to heat 200 ml of water from 20 degrees to 60 degrees Celsius using a 300 Watt immersion heater, we can use the formula:
Q = mcΔT
Where:
Q is the heat required
m is the mass of water
c is the specific heat capacity of water
ΔT is the change in temperature
First, we need to calculate the heat required:
Q = (0.2 kg) * (4180 J/kg·K) * (60 - 20)
Q = 8360 J
Next, we can find the time required to provide this amount of heat using the power of the immersion heater:
t = Q / P
t = (8360 J) / (300 W)
t = 27.87 seconds
Therefore, it will take approximately 27.87 seconds to heat 200 ml of water from 20 degrees to 60 degrees Celsius using a 300 Watt immersion heater.