Which is an example of closed system ?

Related Mcqs:

Which of the following is an undesirable characteristic of a refrigerant ?

A. It should be non-explosive B. It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils C. Its vapor pressure at the condenser temperature should be very high D. None of these...

The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x1. x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is__________________?

A. A . x22 B. Ax1 C. Ax2 D. Ax12...

With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure___________________?

A. Increases B. Decreases C. Remain same D. Decreases linearly...

For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion does not depend on the________________?

A. Steam to ethylene ratio B. Temperature C. Pressure D. None of these...

The gas law (PV = RT) is true for an ______________ change?

A. Isothermal B. Adiabatic C. Both A. & B D. Neither A. nor B...