In the pressure cooker, cooking is fast because the increase in vapour pressure
A. increases the specific heat
B. decreases the specific heat
C. decreases the boiling point
D. increases the boiling point
Answer: Option D
A. increases the specific heat
B. decreases the specific heat
C. decreases the boiling point
D. increases the boiling point
Answer: Option D
A. physical change
B. reduction reaction
C. endothermic reaction
D. exothermic reaction
Which law of the thermochemistry introduces the concept of entropy?
A. Second Law
B. Zeroth Law
C. Third Law
D. First Law
Which of the following is a closed system?
A. Jet engine
B. Tea placed in steel kettle
C. Pressure cooker
D. Rocket engine during propulsion
The entropy of perfectly crystalline solid at absolute zero is
A. positive
B. negative
C. Zero
D. not definite
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