MCQOPTIONS
Saved Bookmarks
| 1. |
A cube of side 5 cm made of iron and having a mass of 1500 g is heated from \[25{}^\circ C\] to \[400{}^\circ C.\]The specific heat for iron is \[0.12\text{ }cal/g{}^\circ C\]and the coefficient of volume expansion is \[3.5\times {{10}^{-5}}/{}^\circ C,\]the change in the internal energy of the cube is (atm pressure \[1\times {{10}^{5}}N/{{m}^{2}}\]) |
| A. | 320 kJ |
| B. | 282 kJ |
| C. | 141 kJ |
| D. | 423 kJ |
| Answer» C. 141 kJ | |