Cp equals Cv at________________?
Cp equals Cv at________________?
A. 0°C
B. 0°K
C. 0°F
D. 0°R
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No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________?
No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________?A. Collide without loss of energy
B. Do work equal to loss in kinetic energy
C. Are above the inversion temperature
D. Exert no attractive force on each otherAn ideal gas can be liquefied, because ___________________?
An ideal gas can be liquefied, because ___________________?A. Its molecular size is very small
B. Its critical temperature is more than 0°C
C. Forces operative between its molecules are negligible
D. It gets solidified directly without becoming liquidHeat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because_________________?
Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because_________________?A. The strong base and strong acid reacts completely
B. The salt formed does not hydrolyse
C. Only OH- and H+ ions react in every case
D. The strong base and strong acid reacts in aqueous solutionA gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is__________________?
A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is__________________?A. 0.16
B. 0.33
C. 0.66
D. 0.47Equal masses of CH4 and H2 are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is___________________?
Equal masses of CH4 and H2 are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is___________________?A. 1/9
B. 8/9
C. 1/2
D. 5/9The vapor pressure of water at 100°C is__________________?
The vapor pressure of water at 100°C is__________________?A. 100 N/m2
B. 76 cms of Hg
C. 13.6 cms of Hg
D. 760 mm wc