Related Questions

The temperature at which a gas, when subjected to Joule-Thomson expansion, neither cools or heats up, is termed as the __________ temperature. Above this temperature the gas heats up on throttling and below this the gas cools down.
A Isotactic
B Saturation
C Inversion
D Throttling
দুটি এক-পরমাণুক আদর্শ গ্যাস পরস্পরের সাথে তাপীয় সাম্যাবস্থায় আছে। A গ্যাস m ভরের অণু দ্বারা গঠিত, এবং B গ্যাস 4m ভরের অণু দ্বারা গঠিত। A গ্যাসের আয়তন ৪ গ্যাসের আয়তনের দ্বিগুণ। এদের চাপের অনুপাত PA / PB কত? (Two monoatomic ideal gases are in thermal equilibrium with each other. Gas A is composed of molecules with mass m while gas B is composed of molecules with mass 4m. The volume of gas A is twice that of gas B. What it the ratio of their pressures PA / PB ?)
A 1/4
B 1/2
C 1
D 2
The gas constant (R) is equal to the __________ of two specific heats.
A Product
B Sum
C Difference
D Ratio
If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.
A True
B False
Which of the following is a monoatomic gas?
A Oxygen
B Neon
C Nitrogen
D Fluorine
According to the kinetic theory, the thermal conductivity of a monoatomic gas is proportional to
A T
B T0.5
C T1.5
D T2
The ratio of two specific heats of air is equal to
A 0.17
B 0.24
C 0.1
D 1.41
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when
A Flow is uniform and steady
B Process is isentropic
C Process is isothermal
D Process is isentropic and specific heat does not change with temperature
As compared to air standard cycle, in actual working, the effect of variation in specific heats is to
A Increase maximum pressure and maximum temperature
B Reduce maximum pressure and maximum temperature
C Increase maximum pressure and decrease maximum temperature
D Decrease maximum pressure and increase maximum temperature
In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.
A Increase
B Decrease
C Remain unchanged
D None of these

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