A) \[3.46\times {{10}^{4}}J\]
B) \[2.33\times {{10}^{3}}J\]
C) \[12\times {{10}^{5}}\]
D) \[2.33\times {{10}^{4}}J\]
Correct Answer: D
Solution :
| [d] Initial temperature, \[{{T}_{i}}=300K;\] Final temperature, \[{{T}_{f}}=700K\] |
| \[Q=\int\limits_{300}^{700}{nCdT=\int\limits_{300}^{700}{2\times (27.2+4\times {{10}^{-3}}\times T)dT}}\] |
| \[=\left[ 54.4T+4\times {{10}^{-3}}{{T}^{2}} \right]_{300}^{700}=2.33\times {{10}^{4}}J\] |
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