On application of pressure to the equilibrium system, ice ⇋ water; which of the following phenomenon will occur? More ice will be formed More water will be formed Equilibrium will not be attained Water will evaporate TRUE ANSWER : ? YOUR ANSWER : ?
For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases __________ times. 8 16 12 32 TRUE ANSWER : ? YOUR ANSWER : ?
Sum of the powers of the concentration terms in the rate equation is called the __________ of the reaction. Molecularity None of these Overall order Order TRUE ANSWER : ? YOUR ANSWER : ?
Variables affecting the rate of homogeneous reactions are Pressure and temperature only Pressure, temperature and composition Temperature and composition only Pressure and composition only TRUE ANSWER : ? YOUR ANSWER : ?
A balanced chemical reaction equation conforms to the law of Avagadro's hypothesis Gaseous volumes Conservation of mass None ofthese TRUE ANSWER : ? YOUR ANSWER : ?
The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Increased temperature reduces the activation energy Value of threshold energy decreases Collision frequency increases Fraction of molecules having threshold energy increases TRUE ANSWER : ? YOUR ANSWER : ?
For the same residence time, which one will give the maximum conversion? Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) Stirred tank followed by tubular flow reactor (each of 2.5 litres) Two stirred tank (each of 2.5 litres) in series TRUE ANSWER : ? YOUR ANSWER : ?
Catalyst is a substance, which __________ chemical reaction. Alters the value of equilibrium constant in a reversible Increases the speed of a Decreases the speed of a Can either increase or decrease the speed of a TRUE ANSWER : ? YOUR ANSWER : ?
reactant and product streams). The amount of heat to be removed is 2/3 kW 4kW 1kW 5/3 kW TRUE ANSWER : ? YOUR ANSWER : ?
Half life period of a first order irreversible reaction A → B is Ln k/2 K/2 Ln 0.5/k Ln 2/k TRUE ANSWER : ? YOUR ANSWER : ?