Cp – Cv for an ideal gas is equal to________________?
Cp – Cv for an ideal gas is equal to________________?
A. R
B. R/2
C. 2R
D. 3R
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Refractory bricks having lower porosity have _____________________?
Refractory bricks having lower porosity have _____________________?A. High insulating properties
B. Low heat capacity
C. Low thermal conductivity
D. Greater strengthOne kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1 ) under these conditions is___________________?
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1 ) under these conditions is___________________?A. 40732
B. 2676
C. 2263
D. 540Water content in ground refractory material to be shaped into bricks by hand moulding is about _____________ percent?
Water content in ground refractory material to be shaped into bricks by hand moulding is about _____________ percent?A. 5
B. 20
C. 40
D. 55Kopp’s rule is useful for the determination of_____________________?
Kopp’s rule is useful for the determination of_____________________?A. Molal heat capacities of gases
B. Heat capacities of solids
C. Activation energy
D. Heat capacities of gasesOn addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?
On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?A. 1
B. 8
C. 4
D. 2In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is__________________?
In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is__________________?A. Independent of temperature
B. Increases with rise in pressure
C. Increased with decrease in pressure
D. Unchanged with pressure changes