Thermodynamics for Chemical Archives

Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called ____________ solutions?

A. Ideal
B. Real
C. Isotonic
D. None of these

Thermodynamics for Chemical

Boyle’s law for gases states that____________________?

Thermodynamics for Chemical / admin

Boyle’s law for gases states that____________________?

A. P ∝ 1/V, when temperature is constant
B. P ∝ 1/V, when temperature & mass of the gas remain constant
C. P ∝ V, at constant temperature & mass of the gas
D. P/V = constant, for any gas

Boyle’s law for gases states that____________________? Read More »

Thermodynamics for Chemical

The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be _______________?

Thermodynamics for Chemical / admin

The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be _______________?

A. More
B. Less
C. Same
D. Data insufficient to predict

The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be _______________? Read More »

Thermodynamics for Chemical

With increase in pressure (above atmospheric pressure), the Cp of a gas_____________________?

Thermodynamics for Chemical / admin

With increase in pressure (above atmospheric pressure), the Cp of a gas_____________________?

A. Increases
B. Decreases
C. Remains unchanged
D. First decreases and then increases

With increase in pressure (above atmospheric pressure), the Cp of a gas_____________________? Read More »

Thermodynamics for Chemical

PVy = constant, holds good for an isentropic process, which is_________________?

Thermodynamics for Chemical / admin

PVy = constant, holds good for an isentropic process, which is_________________?

A. Reversible and isothermal
B. Isothermal and irreversible
C. Reversible and adiabatic
D. Adiabatic and irreversible

PVy = constant, holds good for an isentropic process, which is_________________? Read More »

Thermodynamics for Chemical

As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then approaches_______________________?

Thermodynamics for Chemical / admin

As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then approaches_______________________?

A. Unity
B. Zero
C. That of the heat of reaction
D. Infinity

As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then approaches_______________________? Read More »

Thermodynamics for Chemical

Which of the following is a thermodynamic property of a system ?

Thermodynamics for Chemical / admin

Which of the following is a thermodynamic property of a system ?

A. Concentration
B. Mass
C. Temperature
D. Entropy

Which of the following is a thermodynamic property of a system ? Read More »

Thermodynamics for Chemical

In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?

Thermodynamics for Chemical / admin

In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?

A. More
B. Less
C. Same
D. Unpredictable; depends on the particular reaction

In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________? Read More »

Thermodynamics for Chemical