Stoichiometry

Sodium ______________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature?

Byadmin March 12, 2019August 30, 2021

Sodium ______________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature?

A. Carbonate (monohydrate)
B. Chloride
C. Thiosulphate
D. Bisulphite

Stoichiometry

A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?

A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?

A. 3 kmole/hr
B. 4 kmole/hr
C. 5 kmole/hr
D. 6 kmole/hr

Read More A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?
Stoichiometry

The rate of material _____________ is zero in case of a steady state system?

The rate of material _____________ is zero in case of a steady state system?

A. Accumulation
B. Production
C. Input
D. Generation

Read More The rate of material _____________ is zero in case of a steady state system?
Stoichiometry

The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is___________________?

The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is___________________?

A. Less than 100°C
B. 100°C
C. Between 100 and 110°C
D. 110.6°C

Read More The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. The temperature at which the above mixture will exert a pressure of one standard atm. is___________________?
Stoichiometry

If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will_________________?

If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will_________________?

A. Be reduced to 1/4th
B. Increase four times
C. Increase two times
D. None of these

Read More If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will_________________?
Stoichiometry

With increase in the temperature of pure (distilled) water, its____________________?

With increase in the temperature of pure (distilled) water, its____________________?

A. pOH decreases and pH increases
B. pOH and pH both decreases
C. pH and pOH both increases
D. pH decreases and pOH increases

Read More With increase in the temperature of pure (distilled) water, its____________________?
Stoichiometry

Which equation is not an equation of state ?

Which equation is not an equation of state ?

A. PV = RT + B/V + y/V2 + ….
B. (P + a/V2)(V-b) = RT
C. loge (p/p0) = (λ/R) (1/T0 – 1/T)
D. p = [RT/(V – b)] – (a/TV2)

Read More Which equation is not an equation of state ?

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