Chemistry, 13.09.2021 09:40 jacobmclawhorn3001
The conical fiask contains compound X which is present in solid , liquid and gaseous states . Which statement is correct ?
A. A gaseous X molecule has a lower mass than a liquid X molecule .
B. Energy is released when X changes from liquid to solid.
C. Liquid X is at a higher temperature than solid X. D. Liquid X molecules vibrate about fixed positions .
Answers: 1
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Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
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The conical fiask contains compound X which is present in solid , liquid and gaseous states . Which...
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