The enthalpy of combustion of methane, graphite, and dihydrogen at 298 K are,

–890.3 kJ mol-1 , –393.5 kJ mol-1, and –285.8 kJ mol-1 respectively.

The enthalpy of formation of CH4(g) is-

1.  –74.8 kJ mol-1

2.  –52.27 kJ mol-1

3.  +74.8 kJ mol-1

4.  +52.26 kJ mol-1

Subtopic:  Thermochemistry |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

 For the reaction A + B → C + D + q (kJ/mol), entropy change is positive. The reaction will be

1. Possible only at high temperature

2. Possible only at low temperature

3. Not possible at any temperature

4. Possible at any temperature

Subtopic:  Spontaneity & Entropy |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

The enthalpy of combustion of carbon to CO2 is –393.5 kJ mol-1. The amount of heat released upon formation of 35.2 g of CO2 from carbon and dioxygen gas would be-

1. -393.5 kJ mol-1

2. -314.8 kJ mol-1

3. +314.8 kJ mol-1

4. -320.5 kJ mol-1

Subtopic:  Thermochemistry |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

For the reaction, , the value of ∆H and ∆S  are respectively -

1. H=0 , S=-ve

2. H=0 , S=0

3. H= -ve , S = -ve

4. H= +ve , S= +ve

Subtopic:  Spontaneity & Entropy |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

A necessary condition for an adiabatic change is-

1. ∆T = 0

2. ∆P = 0

3. q = 0

4. w = 0

Subtopic:  Thermodynamics' Properties and process |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

The enthalpy of formation of all elements in their standard state is-

1. Unity

2. Zero

3. Less than zero

4. Different for each element

Subtopic:  Thermodynamics' Properties and process |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

U° for combustion of methane is -x kJ mol-1.

The value of H° for the same reaction would be -

1. = U°2. > U°3. < U°4. =0

Subtopic:  Enthalpy & Internal energy |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

701 J of heat is absorbed by a system and 394 J of work is done by the system.

The change in internal energy for the process is-

1. 307 J2. -307 J3. 1095 J4. -701 J

Subtopic:  First Law of Thermodynamics |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

The reaction of cyanamide, NH2CN (s) with dioxygen, was carried out in a bomb calorimeter, and ∆U was found to be -742.7 kJ mol-1 at 298 K.

NH2CN (s) + 32O2(g)  N2 (g) + CO2(g) + H2O (l)

The enthalpy change for the reaction at 298 K would be -

1. -741.3 kJ mol-12. + 753.9 kJ mol-13. + 772. 7 kJ mol-14. -845. 1 kJ mol-1

Subtopic:  Enthalpy & Internal energy |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology

The amount of heat needed to raise the temperature of 60.0 g of aluminum from 35°C to 55°C would be -

(Molar heat capacity of Al is 24 J mol-1 K-1)

1. 1.07 J2. 1.07 kJ3. 106.7 kJ4. 100.7 kJ

Subtopic:  Thermodynamics' Properties and process |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for 11th Physics, Chemistry & Biology