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ESE ME: Thermal Science Champion Quiz 1
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Question 1
One kilogram of water at room temperature is brought into contact with a high temperature thermal reservoir. either
The entropy change of the universe is
The entropy change of the universe is
Question 2
Water has a critical specific volume of 0.003155m3 /kg. A closed and rigid steel tank of volume 0.025 m3 contains a mixture of water and steam at 0.1 MPa. The mass of the mixture is 10 kg. The tank is now slowly heated. The liquid level inside the tank
Question 3
In which of the following processes, the heat is fully converted into work?
Question 4
Work transfer between the system and the surroundings______.
Question 5
In a throtting process, which one of the following parameters remains constant?
Question 6
A ballon which is initially collapsed and flat is slowly filled with a gas at 100 kPa so as to form it into a sphere of 1 m radius. The work done by the gas in the ballon during the filling process is
Question 7
Assertion (A) : Though heat is added during a polytropic expansion process for which 
, the temperature of the gas decreases during the process.
Reason (R) : The work done by the system exceeds the heat added to the system.
, the temperature of the gas decreases during the process. Reason (R) : The work done by the system exceeds the heat added to the system.
Question 8
Which one fo the following is the correct sequence of the three processes A, B and C in the increasing order of the amount of work domne by a gas following ideal-gas expansion by these processes?
Question 9
A closed system undergoes a process 1-2 for which the values of W1-2 and Q1-2 are +50kJ,+20kJ, respectively. If the system is returned to state 1 and Q2-1 is -10 kJ, what is the value of the work W2-1?
Question 10
Which of the following is the steady flow energy equation for a boiler _______?
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