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 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 30W. The rate of heat loss from the vessel 50 W. How many minutes was the solution heated if the motor is 80% efficient?
Related questions
Question
thermo
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 50 W. How many
minutes was the solution heated if the motor is 80% efficient?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
