A foreign substance that increase the speed of a chemical reaction is called
Catalyst: Substances which alter the rate of a chemical reaction and themselves remain chemically and quantitatively unchanged after the reaction are known as catalysts and the phenomenon is known as catalysis.
. What will be the value of instantaneous rate of reaction from the graph?
If you make a graph of concentration of reactant vs time, the instantaneous reaction rate at a given time is the slope of the tangent line at that point in time. It is also the value of the rate law at a specific concentration (dA/dt is rate = k [A]).
The rate of a chemical reaction doubles for every 10°C rise of temperature. If the temperature is raised by 50°C, the rate of the reaction increases by about
and for 10times=50°c.
For every 10°C rise of temperature, the rate is doubled. Thus, the temperature coefficient of the reaction = 2
When temperature is increased by 50°, rate becomes =2(50/10) = 25 times = 32 times
Chemical substances speeding up rate of chemical reaction is called as
A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.
Chemical substances speeding up the rate of chemical reaction is called as
A catalyst is a substance that speeds up the rate of the reaction without being consumed by the reaction itself. When a catalyst is added, the activation energy is lowered because the catalyst provides a new reaction pathway with lower activation energy.
The rate constant of zero-order reactions has the unit
For the reaction A + B → C+ D . The variation of the concentration of the products is given by curve
For the reaction, A+B⟶C+D, the variation of the concentration of the products is given by the curve Y.
Initially, the product concentration is 0, then it gradually rises and reaches a maximum value. After that it remains constant.
This behavior is represented by the curve Y.
The term -dx/dt in the rate expression refers to the:
The correct answer is option C
The term in the rate expression refers to the instantaneous rate of the reaction.
It is the ratio of the decrease in the concentration of a reaction to the time taken for this decrease.
Instantaneous reaction expresses
The correct answer is Option A.
The instantaneous rate is the rate of a reaction at any particular point in time, a period of time that is so short that the concentrations of reactants and products change by a negligible amount.
Identify A in the given diagram.
The correct answer is Option D
The instantaneous rate is the rate of a reaction at any particular point in time, a period of time that is so short that the concentrations of reactants and products change by a negligible amount. The initial rate is the instantaneous rate of reaction as it starts (as the product just begins to form).