A. Molten sodium
B. Molten lead
C. Mercury
D. Molten potassium
Related Mcqs:
- Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of________________?
A. Mixing
B. Adsorption
C. Wetting
D. Complete wetting - “The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?
A. Raoult’s
B. Henry’s
C. Amagat’s
D. None of these - According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?
A. T
B. T0.5
C. T1.5
D. T2 - A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is φi yi P = Yi xifi° where, Φ is a vapor fugacity component, Yi is the liquid activity coefficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of ______________________?
A. Temperature only
B. Temperature and pressure only
C. Temperature, pressure and liquid composition xi only
D. Temperature, pressure, liquid composition xi and vapour composition yi - The freezing point of a liquid decreases when the pressure is increased, if the liquid ____________ while freezing?
A. Contracts
B. Expands
C. Does not change in volume
D. Either (A), B. or (C) - A liquid under pressure greater than its vapour pressure for the temperature involved is called a _____________ liquid?
A. Sub-cooled
B. Saturated
C. Non-solidifiable
D. None of these - Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?
A. Vickers hardness test
B. Shore scleroscope test
C. Brinell hardness test
D. Rockwell hardness test - Which of the following is an example of cathodic protection of metals against corrosion ?
A. Painted steel
B. Galvanised iron
C. Case hardened steel
D. Lead lined reactor - The temperature at which the magnetic property of iron disappears (i.e., it becomes nonmagnetic) and its electrical conductivity & specific heat also changes, is called the ‘Curie point’, which is ________________ °C ?
A. 768
B. 908
C. 1400
D. 1539 - With increase in temperature, the electrical conductivity of semiconductors_____________________?
A. Increases
B. Decreases
C. Remain constant
D. Either A. or B. depends on the type of semi-conductor
