We appreciate your visit to If the power input from the oven to the water remains constant how many grams of water will boil away if the oven is operated. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Final answer:
Approximately 100 grams of water would boil away if a 1.25 kW microwave oven operates for 3 minutes, but this assumes all energy is used for vaporizing water, which is not typically the case in practice.
The correct option is a
Explanation:
To determine how many grams of water will boil away if the oven is operated for 3 minutes, we need to calculate the energy transferred from the oven to the water and then use the heat of vaporization to find the mass of the evaporated water.
Firstly, the power of the microwave oven is 1.25 kW, which is equivalent to 1250 W (Watts). Power is defined as energy per unit time (P = E/t). Thus, operating the oven for 3 minutes (180 seconds) at 1.25 kW means the total energy provided by the oven is:
E (total energy) = Power × Time
E = 1250 W × 180 s = 225000 J (Joules)
Given that the heat of vaporization for water is approximately 2260 kJ/kg (or 2260000 J/kg), we can determine the mass of water (m) that can be boiled away as follows:
m = E / heat of vaporization
m = 225000 J / 2260000 J/kg = 0.09956 kg
Converting the mass to grams (1 kg = 1000 g):
m = 0.09956 kg × 1000 g/kg ≈ 99.56 g
This calculation suggests that if the microwave operates for 3 minutes, approximately 100 grams of water would boil away, meaning option (a) 150 grams would be the closest estimate, but actual data suggests less than that amount would evaporate. We must have additional information regarding the efficiency or if all energy goes into vaporizing the water to provide a precise answer.
The correct option is a
Thanks for taking the time to read If the power input from the oven to the water remains constant how many grams of water will boil away if the oven is operated. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!
- Why do Businesses Exist Why does Starbucks Exist What Service does Starbucks Provide Really what is their product.
- The pattern of numbers below is an arithmetic sequence tex 14 24 34 44 54 ldots tex Which statement describes the recursive function used to..
- Morgan felt the need to streamline Edison Electric What changes did Morgan make.
Rewritten by : Barada
