A) \[{{x}_{1}}+{{x}_{2}}\]
B) \[{{x}_{1}}-{{x}_{2}}\]
C) \[-({{x}_{1}}-{{x}_{2}})\]
D) \[{{x}_{1}}+2{{x}_{2}}\]
Correct Answer: C
Solution :
\[{{C}_{2}}{{H}_{4}}+{{H}_{2}}\xrightarrow[{}]{{}}{{C}_{2}}{{H}_{6}}\] \[\Delta H=\Delta H_{f}^{o}({{C}_{2}}{{H}_{6}})-\Delta H_{f}^{o}({{C}_{2}}{{H}_{4}})-\Delta H_{f}^{o}({{H}_{2}})\] \[={{x}_{2}}-{{x}_{1}}-0\] \[={{x}_{2}}-{{x}_{1}}=-({{x}_{1}}-{{x}_{2}})\]You need to login to perform this action.
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