2. In an experimental set-up, 5 kg of salt solution is heated in a glass vessel by a 159 W power gas burner. The internal energy of the solution is to be increased from 90 kJ/kg to 178 kJ/kg for a certain amount of time. An electric stirrer is used to ensure uniform heating of solutions, the power consumption of the stirrer is 3OW. The rate of heat loss from the vessel 50 W. How many minutes was the solution heated if the motor is 80% efficient?
2. In an experimental set-up, 5 kg of salt solution is heated in a glass vessel by a 159 W power gas burner. The internal energy of the solution is to be increased from 90 kJ/kg to 178 kJ/kg for a certain amount of time. An electric stirrer is used to ensure uniform heating of solutions, the power consumption of the stirrer is 3OW. The rate of heat loss from the vessel 50 W. How many minutes was the solution heated if the motor is 80% efficient?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![2. In an experimental set-up, 5 kg of salt solution is heated in a glass vessel by a 159 W power gas
burner. The internal energy of the solution is to be increased from 90 kJ/kg to 178 kJ/kg for a
certain amount of time. An electric stirrer is used to ensure uniform heating of solutions, the
power consumption of the stirrer is 30w. The rate of heat loss from the vessel 50o W. How many
minutes was the solution heated if the motor is 80% efficient?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1477c19f-4789-41b6-a809-4c1d27fe6a50%2Ff0ee2c86-c7ce-4f4a-a3eb-b45b1b1d9164%2Fd6utgfn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. In an experimental set-up, 5 kg of salt solution is heated in a glass vessel by a 159 W power gas
burner. The internal energy of the solution is to be increased from 90 kJ/kg to 178 kJ/kg for a
certain amount of time. An electric stirrer is used to ensure uniform heating of solutions, the
power consumption of the stirrer is 30w. The rate of heat loss from the vessel 50o W. How many
minutes was the solution heated if the motor is 80% efficient?
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