摘要:7.已知3.6 g碳在6.4 g的氧气中燃烧.至反应物耗尽.并放出X kJ热量.已知单质碳的燃烧热为-Y kJ/mol.则C与1mol O2反应生成CO时的反应热ΔH为 A.-Y kJ/mol B.- kJ/mol C.- kJ/mol D.+ kJ/mol
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已知3.6 g碳在6.4 g氧气中燃烧,至反应物耗尽.共放出x kJ热量.已知单质碳的燃烧热为y kJ·mol-1,则1 mol C与O2反应生成CO的反应焓变△H为 ( )
A.-y kJ·mol-1 B.-(5x-0.5y)kJ·mol-1
C.-(10x-y)kJ·mol-1 D.(10x-y)kJ·mol-1
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已知3.6 g碳在6.4 g氧气中燃烧,至反应物耗尽.共放出x kJ热量.已知单质碳的燃烧热为y kJ·mol-1,则1 mol C与O2反应生成CO的反应焓变△H为 ( )
A.-y kJ·mol-1 | B.-(5x-0.5y)kJ·mol-1 |
C.-(10x-y)kJ·mol-1 | D.(10x-y)kJ·mol-1 |
已知3.6 g碳在6.4 g氧气中燃烧,至反应物耗尽.共放出x kJ热量.已知单质碳的燃烧热为y kJ·mol-1,则1 mol C与O2反应生成CO的反应焓变△H为
- A.-y kJ·mol-1
- B.-(5x-0.5y)kJ·mol-1
- C.-(10x-y)kJ·mol-1
- D.(10x-y)kJ·mol-1
已知3.6 g碳在6.4 g氧气中燃烧,至反应物耗尽.共放出x kJ热量.已知单质碳的燃烧热为y kJ·mol-1,则1 mol C与O2反应生成CO的反应焓变△H为 ( )
A.-y kJ·mol-1 | B.-(5x-0.5y)kJ·mol-1 |
C.-(10x-y)kJ·mol-1 | D.(10x-y)kJ·mol-1 |