AP EAMCET · Chemistry · Thermodynamics (C)
At \(300 \mathrm{~K}\) the enthalpy change for the following reaction is \(-2800 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
- A \(-2802.49\)
- B \(-2800.00\)
- C \(-2814.94\)
- D \(+2802.49\)
Answer & Solution
Correct Answer
(B) \(-2800.00\)
Step-by-step Solution
Detailed explanation
\begin{aligned} & \text {} \Delta \mathrm{H}=\Delta \mathrm{U}+\mathrm{P} \Delta \mathrm{V}=\Delta \mathrm{U}+\Delta \mathrm{n}_{\mathrm{g}} \mathrm{RT} \\ & \Rightarrow \Delta \mathrm{U}=\Delta \mathrm{H}-\Delta \mathrm{n}_{\mathrm{g}} \mathrm{RT}=(-2800)-(0 \times 0.082 \times…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The order of reactivity of the following alkyl bromides towards \(\mathrm{S}_{\mathrm{N}}{ }^1\) reactions is
a) \(\left(\mathrm{CH}_3\right)_2 \mathrm{CHBr}\)
b) \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Br}\)
c) \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{Br}\)AP EAMCET 2017 Easy - Gastric juice contains about \(3.0 \mathrm{~g}\) of \(\mathrm{HCl}\) per liter. If a person produce about 2.6 liters of gastric juice per day, find the number of antacid tablets required to neutralise all the \(\mathrm{HCl}\) produced. Consider each antacid tablet contains \(400 \mathrm{mg}\) of \(\mathrm{Al}(\mathrm{OH})_3\).
[Given, atomic masses : \(\mathrm{Al}=27, \mathrm{O}=16\), \(\mathrm{H}=1, \mathrm{Cl}=35.5]\)AP EAMCET 2021 Medium - Which of the following salts form hydrates?
\(\begin{array}{lcccc}\mathrm{CaCl}_2 & \mathrm{NaCl} & \mathrm{LiCl} & \mathrm{BaCl}_2 & \mathrm{KCl} \\ \text { I } & \text { II } & \text { III } & \text { IV } & \text { V }\end{array}\)AP EAMCET 2022 Easy - Which one of the following is more reactive towards \(\mathrm{S}_{\mathrm{N}} 2\) reaction?AP EAMCET 2017 Easy
- Which of the following practices will not come under green chemistry?
AP EAMCET 2021 Easy - Match the following.
The correct answer is
\begin{array}{llllllllll}
& A & B & C & D &
\end{array}AP EAMCET 2018 Medium
More PYQs from AP EAMCET
- The pressure on a circular plate is measured by measuring the force on the plate and the radius of the plate. If the errors in measurement of the force and the radius are \(5 \%\) and \(3 \%\) respectively, the percentage of error in the measurement of pressure isAP EAMCET 2015 Medium
- An \(100 \mathrm{eV}\) electron is fired directly towards a large metal plate having surface charge density \(-2 \times 10^{-6} \mathrm{Cm}^{-2}\). The distance from where the electron be projected, so that it just fails to strike the plate isAP EAMCET 2021 Hard
- A clock pendulum made of invar has a period of \(0.5 \mathrm{~s}\), at \(20^{\circ} \mathrm{C}\). If the clock is used in a climate where the temperature averages to \(30^{\circ} \mathrm{C}\), how much time does the clock lose in each oscillation? (For invar, \(\alpha=9 \times 10^{-7} /{ }^{\circ} \mathrm{C}\), \(g=\) constant \()\)AP EAMCET 2009 Easy
- A ball of mass is dropped from a height above a sandy ground. On reaching the ground, it penetrates through a distance in sand and finally stops. The average resistance offered by the sand to oppose the motion is (acceleration due to gravity )AP EAMCET 2022 Medium
- If \(N\) denotes the set of all positive integers and if \(f: N \rightarrow N\) is defined by \(f(n)=\) the sum of positive divisors of \(n\) then, \(f\left(2^k \cdot 3\right)\), where \(k\) is a positive integers, isAP EAMCET 2005 Medium
- or is considered as an acid because its moleculeAP EAMCET 2021 Medium