Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will
A. Increase
B. Decrease
C. Remain unchanged
D. First fall and then rise
Answer: Option A
Solution(By Examveda Team)
As thermos flask is insulated no heat energy added or taken from the system so, by first law of thermodynamics we can write $$dU = - \delta W$$ as we work done on the system is negative so, the internal energy will be positive. And therefore there will be a raise in temperature.Related Questions on Chemical Engineering Thermodynamics
A. Maxwell's equation
B. Thermodynamic equation of state
C. Equation of state
D. Redlich-Kwong equation of state
Henry's law is closely obeyed by a gas, when its __________ is extremely high.
A. Pressure
B. Solubility
C. Temperature
D. None of these
A. Enthalpy
B. Volume
C. Both A & B
D. Neither A nor B
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