Enthalpy change is an important topic in the Chemistry section in MHT CET exam. Practising this topic will increase your score overall and make your conceptual grip on MHT CET exam stronger.
This article gives you a full set of MHT CET PYQs for Enthalpy change with explanations for effective preparation. Practice of MHT CET Chemistry PYQs including Enthalpy change questions regularly will improve accuracy, speed, and confidence in the MHT CET 2026 exam.
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MHT CET PYQs for Enthalpy change with Solutions
1.
The enthalpy change for the reaction \( \text{N}_2(g) + 3\text{H}_2(g) \rightarrow 2\text{NH}_3(g) \) is \( -92.4 \, \text{kJ/mol} \). What is the enthalpy change when 4 moles of nitrogen react?- \( -92.4 \, \text{kJ} \)
- \( -184.8 \, \text{kJ} \)
- \( -46.2 \, \text{kJ} \)
- \( -368.4 \, \text{kJ} \)
2.
The enthalpy of formation for \( \text{H}_2(g) \), \( \text{O}_2(g) \), and \( \text{H}_2O(l) \) are 0, 0, and -285.8 kJ/mol, respectively. What is the enthalpy change for the following reaction: \[ \text{2H}_2(g) + \text{O}_2(g) \rightarrow 2\text{H}_2O(l) \]- \( -571.6 \, \text{kJ/mol} \)
- \( -285.8 \, \text{kJ/mol} \)
- \( 0 \, \text{kJ/mol} \)
- \( 571.6 \, \text{kJ/mol} \)
3.
The enthalpy change for the reaction \( \text{C} + \text{O}_2 \rightarrow \text{CO}_2 \) is \( -393.5 \, \text{kJ/mol} \). What is the heat released when 2 moles of carbon react with excess oxygen?- \( -393.5 \, \text{kJ} \)
- \( -787 \, \text{kJ} \)
- \( -196.75 \, \text{kJ} \)
- \( 0 \, \text{kJ} \)
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