MHT CET 2026 17th April Evening Shift | Thermodynamics Question 20 | Chemistry

Calculate the standard enthalpy of combustion of carbon monoxide if
$\Delta_f H^\circ (\text{CO}) = -110 \text{ kJ mol}^{-1}$
$\Delta_f H^\circ (\text{CO}_2) = -393 \text{ kJ mol}^{-1}$

$-503 \text{ kJ mol}^{-1}$

$-110 \text{ kJ mol}^{-1}$

$-283 \text{ kJ mol}^{-1}$

$-383 \text{ kJ mol}^{-1}$

MHT CET 2026 17th April Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following processes is an endothermic ?

The aqueous NaOH and HCl solutions mixed together.

Formation of ammonia by Haber process.

Ice melts at room temperature.

The freezing of liquid water.

MHT CET 2026 17th April Morning Shift

MCQ (Single Correct Answer)

-0

Which of the following equations is used to obtain enthalpy change of a reaction?

$\Delta H = \sum \Delta H_P - \sum \Delta H_R$

$\Delta H = \sum \Delta H_R - \sum \Delta H_P$

$\Delta H = \sum \Delta H_P + \sum \Delta H_R$

$\Delta H = \dfrac{\sum \Delta H_P}{\sum \Delta H_R}$

MHT CET 2026 17th April Morning Shift

MCQ (Single Correct Answer)

-0

A system is provided 50 J of heat and work done on the system is 10 J. What is change in internal energy ?

$40$ J

$60$ J

$30$ J

$50$ J

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Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry

Inorganic Chemistry

Periodic Table and Periodicity Chemical Bonding and Molecular Structure Metallurgy Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry

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IUPAC Nomenclatures General Organic Chemistry Isomerism Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry