1. | 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. |
The 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
1. | 1260 J | 2. | 2520 J |
3. | 5040 J | 4. | 0 J |
An 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 |