Multiple Choice

The value of the rate constant of a reaction depends on:

Atime
Bactivation energy
Correct Answer
Ctemperature
Correct Answer
Dhalf-life value

Solution

Rate constant, $$(k)= Ae^\dfrac{-Ea}{RT}$$

It depends on temperature and activation energy. With an increase of temperature, the rate of reaction increases as molecular collisions and thus, collision frequency increases and with a decrease of temperature, the rate of reaction decreases.

So, options B and C are correct.

SIMILAR QUESTIONS

Physical World

With increase in temperature the value of the rate constant of a reaction generally:

Physical World

The rate constant is given by the equation, $$K=Ae^{-Ea/RT}$$, which factor should register a decrease for the reaction to proceed more rapidly?

Physical World

Consider the following plots of rate constant versus $$\cfrac{1}{T}$$ for four different reactions. Which of the following orders is correct for the activation energies of these reactions?

Physical World

According to the Arrhenius equation,

Physical World

Given below are the plots which show the variation of the rate constant (k) with temperature (T). Select the plot which follows the Arrhenius equation.

Physical World

Which among the following equations represents Arrhenius equation ?

Physical World

$$A\overset{k_1}{\rightarrow}$$B, Activation Energy $$Ea_1$$ $$A\overset{k_2}{\rightarrow}$$C, Activation Energy $$Ea_2$$ If $$Ea_2=2Ea_1$$, then $$k_1$$ and $$k_2$$ are related as:

Physical World

The debit balance of the bank account as per the cash book should be equal to the credit balance of the account of the business in the books of the bank.

Physical World

On January $$15$$, $$2011$$, Kartar sold goods for Rs. $$30,000$$ to Bhagwan and drew upon him three bills of exchanges of Rs. $$10,000$$ each payable after one month, two months and three months respectively. The first bill was retained by Kartar till its maturity. The second bill was endorsed by him in favour of his creditor Ratna and the third bill was discounted by him immediately at the rate of $$6\%$$ per annum. All the bills were met by Bhagwan. Journalise the above transactions in the books of Kartar and Bhagwan. Also prepare ledger accounts in the books of Kartar and Bhagwan.

Physical World

Kapil purchased goods for Rs. $$21,000$$ from Gaurav on $$1.2.2011$$ and accepted a bill of exchange drawn by Gaurav for the same amount. The bill was payable after one month. On $$25.2.2008$$ Gaurav sent the bill to his bank for collection. The bill was duly presented by the bank. Kapil dishonoured the bill and the bank paid Rs. $$100$$ as noting charges. Record the necessary Journal entries for the above transactions is the books of Kapil and Gaurav.

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