In which case temperature increase is highest

AI Thread Summary
The discussion centers on determining the highest temperature increase when mixing equal concentrations of a strong acid and a base. The options include various volumes of acid and alkali, with the consensus leaning towards option B (40ml acid-40ml alkali) as the correct answer due to its higher total volume. However, participants note that both options B and C could yield significant temperature increases. The equation q=mcΔT is mentioned as a potential method for calculating temperature change, though some participants express uncertainty about the variables involved. Ultimately, the conversation highlights the need for a scientific rationale behind the temperature increase in acid-base reactions.
utkarshakash
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Homework Statement


In which case of mixing of a strong acid and a base each of 1 N concentration, temperature increase is highest.

A)20ml acid-30ml alkali
B)40ml acid-40ml alkali
C)25ml acid-25ml alkali
D)35ml acid-15ml alkali

Homework Equations


Law of Equivalents

The Attempt at a Solution


Using the law of equivalents I have
N_{1}V_{1}=N_{2}V_{2}
Since both are 1 N
∴V_{1}=V_{2}
So I am now left with options B and C but I don't have any clues how to differentiate between the two. Speaking in layman's term in option B the volume is more so temperature increase will be highest(Fortunately this is correct answer:wink:) but I need a scientific reasoning for this.
 
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B is not the only correct answer.

q=mcΔT, solve for ΔT, see if it helps.
 
Borek said:
B is not the only correct answer.

q=mcΔT, solve for ΔT, see if it helps.

I don't know q,m and c. How can I solve it?
 
Thread 'Confusion regarding a chemical kinetics problem'

Thread 'Confusion regarding a chemical kinetics problem'

TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
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