An ideal gas expands isothermally from 10-3m3 to 10-2 m3 at 300 K against a constant pressure of 105 Nm-2. The work done by  the gas is:

1. +270 kJ

2. -900 J

3. +900 kJ

4. -900 kJ

Subtopic:  First Law of Thermodynamics |
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The work done when 1 mole of gas expands reversibly and isothermally from pressure of 5 atm to 1 atm at 300 K is

(Given log 5=0.6989 and R=8.314 J K-1 mol-1)
1.  zero J
2.  150 J
3.  +4014.6 J
4.  -4014.6 J

Subtopic:  First Law of Thermodynamics |
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One mole of an ideal gas at 300 K is expanded isothermally from 1 L to 10 L volume. \(\Delta U\) for this process is:
(Use R = 8.314 J K–1 mol–1)
1. 1260 J
2. 2520 J
3. 5040 J
4. 0 J
Subtopic:  First Law of Thermodynamics |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology