A) \[9\times {{10}^{3}}\,cals\]
B) \[6\times {{10}^{3}}\,cals\]
C) 4.49 cals
D) none of these
Correct Answer: D
Solution :
Heat of system \[{{\left( \Delta H \right)}_{v}}\ =\,\,m\,\,\times \,\,L\nu \] \[= 90 \times 540 = 486000 cal\] \[\Delta H=\Delta E+P({{V}_{v}}-{{V}_{1}})\,=\Delta E+nRT\] or \[48600= \Delta E + \frac{90}{18} \times 2 \times 373\] \[\Delta E=48600-3730=44870\,\,cal\]You need to login to perform this action.
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