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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | Both the heat and work done will be greater than zero. |
2. | Heat absorbed will be less than zero and work done will be positive. |
3. | Work done will be zero and heat will also be zero. |
4. | Work done will be greater than zero and heat will remain zero. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe work done when 1 mole of gas expands reversibly and isothermally from a 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | 1260 J | 2. | 2520 J |
3. | 5040 J | 4. | 0 J |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn ideal gas expands isothermally from at 300 K against a constant pressure of . The work done by the gas is:
1. | +270 kJ | 2. | –900 J |
3. | +900 kJ | 4. | –900 kJ |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA gas is allowed to expand in a well-insulated container against a constant external pressure of 2.5atm from an initial volume of 2.50 L to a final volume of 4.50L. The change in internal energy U of the gas in joules will be:
1. –500J
2. –505J
3. –506J
4. –508J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify which of the following is the correct option for free expansion of an ideal gas under adiabatic condition.
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThree moles of an ideal gas expanded spontaneously into vacuum. The work done will be:
1. 3 Joules
2. 9 Joules
3. Zero
4. Infinite
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe work done during the expansion of a gas from a volume of 4 dm3 to 6 dm3 against a constant external pressure of 3 atm is:
1. –608 J
2. +304 J
3. –304 J
4. –6 J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe molar heat capacity of water at constant pressure, C, is 75 JK–1 mol–1. When 1.0 kJ of heat is supplied to 100 g of water which is free to expand, the increase in temperature of the water is:
1. | 1.2 K | 2. | 2.4 K |
3. | 4.8 K | 4. | 6.6 K |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology