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निम्नलिखित उष्मा रासायनिक समीकरणों से द्रव मैथिल एल्कोहॉल की सम्भावन उष्मा ज्ञात कीजिय --
`C(s)+O_2(g)toCO_2(g)," "DeltaH=-94.0` किलो - कैलोरी
`H_2(g)+1/2O_(2)(g)toH_(2)O(l)," "DeltaH=-68.4` किलो - कैलोरी
`CH_3OH(l)+3/2O_2(g)toCO_2(g)+2H_2O(l)" "DeltaH=-173.7` किलो-कैलोरी

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`DeltaH=-57.1` किलो-कैलोरी

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