A. Tungsten
B. Zirconium
C. Molybdenum
D. Tantalum
Related Mcqs:
- Melting of wax is accompanied with ______________ in entropy?
A. Increase
B. Decrease
C. No change
D. None of these - Melting of ice exemplifies a/an______________________?
A. Adiabatic process
B. Endothermic reaction
C. Exothermic reaction
D. Process involving a chemical reaction - Specific ____________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.)?
A. Entropy
B. Internal energy
C. Enthalpy
D. Gibbs free energy - Melting of ice is an example of an _____________ process?
A. Adiabatic
B. Isothermal
C. Isometric
D. None of these - One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one ________________?
A. Hour
B. Day
C. Minute
D. Second - Change of state namely evaporation condensation, freezing and melting is an _______________ process?
A. Isothermal
B. Adiabatic
C. Isobaric
D. Isochoric - The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?
A. Increases
B. Decreases
C. Remains unchanged
D. Decreases linearly - Which of the following liquid metals has the highest thermal conductivity ?
A. Molten sodium
B. Molten lead
C. Mercury
D. Molten potassium - In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest ?
A. 30 c.c acid and 30 c.c base
B. 20 c.c acid and 25 c.c base
C. 15 c.c acid and 35 c.c base
D. 35 c.c acid and 15 c.c base - Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature ?
A. Chlorine
B. Nitrogen
C. Ethane
D. All the gases will have the same KE
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